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Product Reviews

15mm. Brass, steel and plastic construction. ¼ turn operation. Compression connection. Suitable for water.

15mm. Brass, steel and plastic construction. ¼ turn operation. Compression connection. Suitable for water.
Average Customer Rating:
4.1 out of 5
4.1
 out of 
5
(20 Reviews) 20
Open Ratings Snapshot
Rating Snapshot (20 reviews)
5 stars
9
4 stars
7
3 stars
2
2 stars
1
1 star
1
18 of 20(90%)reviewers would recommend this product.
Customer Reviews for 15mm Full Bore Isolating Valve
Review 1 for 15mm Full Bore Isolating Valve
Overall Rating: 
5 out of 5
5 out of 5
Value: 
4 out of 5
4 out of 5
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4 out of 5
4 out of 5
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4 out of 5
4 out of 5
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4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
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4 out of 5
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4 out of 5
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4 out of 5
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Full bore Isolator
27 Mar 2013
By Eccles789
, Orpington
"Very good, does what it is built for. Good quality valve, well finished."
Review 2 for 15mm Full Bore Isolating Valve
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
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5 out of 5
5 out of 5
Performance: 
5 out of 5
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4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
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5 out of 5
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4 out of 5
4 out of 5
Good for 15mm shower inlets
1 Mar 2013
By Dezzie
, Glenrothes, Fife
"If you have 15mm bath or shower inets this product is great. The usual shut offs have a much smaller bore but this allows maximum flow without restriction. Allows the water to be isolated where you want without affecting the remainder of the house. Great for me when doing full refits.
One of the valves leaked from the screwdriver slot where it turns but it was replaced without problem.
"
2 of 2 people found this review helpful.
Review 3 for 15mm Full Bore Isolating Valve
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
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5 out of 5
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5 out of 5
5 out of 5
15mm Full Bore Isolating Valve
30 Jan 2013
By Johnst
, Warwick
"15mm Full Bore Isolating Valve just like as balls fix valve but no restriction to the pressure"
Review 4 for 15mm Full Bore Isolating Valve
Overall Rating: 
5 out of 5
5 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
5 out of 5
5 out of 5
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5 out of 5
5 out of 5
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5 out of 5
5 out of 5
Full bore means full flow
28 Nov 2012
By NigeTheToolkit
, Norfolk
"For anyone who has used an isolation valve on a gravity fed shower then make sure you fit these full bore ones rather than the standard type. The difference in flow is amazing and makes for happy shower users without complaints of "low rate dribble showers". OK they cost a bit more but where non-mains pressure is concerned every drop of available pressure counts."
2 of 2 people found this review helpful.
Review 5 for 15mm Full Bore Isolating Valve
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
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5 out of 5
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5 out of 5
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Makes a difference!
24 Oct 2012
By DrWood
, Northumberland
"If like me your property has low hot water pressure yet you like individual points of tap isolation then this a really good product, I was surprised how much basic isolators restrict the flow."
Review 6 for 15mm Full Bore Isolating Valve
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
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5 out of 5
5 out of 5
excellent valve
18 Sep 2012
By slash1
, northampton
"Excellent valve, good value, allows full bore flow."
Review 7 for 15mm Full Bore Isolating Valve
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
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5 out of 5
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5 out of 5
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5 out of 5
5 out of 5
Best for the job
21 Feb 2012
By 20Years
, London
"Do not buy any other valve, you will probably waist your time.
This is the right products and it functions exactly as it should.
"
1 of 1 people found this review helpful.
Review 8 for 15mm Full Bore Isolating Valve
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
5 out of 5
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5 out of 5
5 out of 5
isolation valve
13 Nov 2011
By vince1
, Notts
"used the valve to to isolate parts of central heating system, worked a treat."
Review 9 for 15mm Full Bore Isolating Valve
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Full bore isolating valves
17 Mar 2011
By Evaluator
, Welshpool
"Good value and works well. Can be difficult to turn on/off unless you use a suitable large screwdriver."
Review 10 for 15mm Full Bore Isolating Valve
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
3 out of 5
3 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
3 out of 5
3 out of 5
Reliability: 
4 out of 5
4 out of 5
Tip top
28 Oct 2013
By Catty
, Essex
"Really good product don't mess around the cheaper units really restrict onward flow!"
Review 11 for 15mm Full Bore Isolating Valve
Overall Rating: 
4 out of 5
4 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Full bore use
25 Apr 2013
By ceejay51
, Leeds
"Use when full pressure is constantly needed ESP on shower pumps"
Review 12 for 15mm Full Bore Isolating Valve
Overall Rating: 
4 out of 5
4 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
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4 out of 5
4 out of 5
Full bore isolators
30 Dec 2012
By batty18
, Aylesbury, Bucks
"Quite expensive compared to the standard reduced bore valves but if you need a full bore isolator then these are the cheapest i could find."
Review 13 for 15mm Full Bore Isolating Valve
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
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4 out of 5
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4 out of 5
4 out of 5
Use a large screwdriver
19 Oct 2012
By AceRimmer
, Hertfordshire
"Can be a bit stiff to actuate, so ensure you use a large bladed driver or you can damage the slotted portion."
Review 14 for 15mm Full Bore Isolating Valve
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
4 out of 5
4 out of 5
Features: 
4 out of 5
4 out of 5
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4 out of 5
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4 out of 5
4 out of 5
Does the job
24 Sep 2012
By Steve1957
, Egham
"This valve is significantly larger than the narrow bore valve both in length and diameter. Overall length (without caps on) is 55.5 mm and the diameter of widest part is 28.5 mm. There is no obvious direction of flow with this valve so I guess it can be fitted either way around. The valve is quite stiff and the slot shallow so you need a good fitting screwdriver if you are not to damage the slot.
The body of the valve has a handy octagon on the body so you can use a 24mm spanner on it if you need to tighten or slacken just one end and hold the body steady. The end caps need a 23mm spanner"
3 of 3 people found this review helpful.
Review 15 for 15mm Full Bore Isolating Valve
Overall Rating: 
4 out of 5
4 out of 5
Value: 
2 out of 5
2 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
2 out of 5
2 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
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4 out of 5
4 out of 5
Good for HW system
3 Sep 2012
By bobthediyer
, Burnley
"This isolator was very stiff to adjust at first but after easing it works exactly as you'd expect. Being full bore it allows better flow on HW lines. It is larger than the standard isolator but easy to fit. Quite expensive compared to standard but usefull when there is lower pressure in lines."
Review 16 for 15mm Full Bore Isolating Valve
Overall Rating: 
4 out of 5
4 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
3 out of 5
3 out of 5
Would you recommend this product? Yes
Overall Rating: 
4 out of 5
4 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
4 out of 5
4 out of 5
Reliability: 
3 out of 5
3 out of 5
Why use Full Bore?
23 Feb 2011
By EnthusiastDIYer
, Bristol
"I wanted this for an outside tap with a hose-pipe, so I went for the more expensive full-bore fitting rather than a cheaper one that would be fine for a basin tap. It's on copper pipe so no problems with it coming apart, as I believe can happen on plastic. The current image does not show a Full Bore valve, as the centre section is thicker than shown to keep the 1/2" bore throughout, but it definitely is full bore.
I hope it's reliable!"
1 of 1 people found this review helpful.
Review 17 for 15mm Full Bore Isolating Valve
Overall Rating: 
3 out of 5
3 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
3 out of 5
3 out of 5
Reliability: 
4 out of 5
4 out of 5
Would you recommend this product? Yes
Overall Rating: 
3 out of 5
3 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
3 out of 5
3 out of 5
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4 out of 5
4 out of 5
Value valve
12 Dec 2012
By aquafitbathrooms
, Leicestershire
"Could be better if it had the the half turn shut off, but apart from that they have always been reliable and cheaper than others I have bought."
Review 18 for 15mm Full Bore Isolating Valve
Overall Rating: 
3 out of 5
3 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
1 out of 5
1 out of 5
Would you recommend this product? Yes
Overall Rating: 
3 out of 5
3 out of 5
Value: 
3 out of 5
3 out of 5
Features: 
4 out of 5
4 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
1 out of 5
1 out of 5
A tap that won't turn off
18 Jun 2011
By PlayingAtDIY
, Reading
"Fortunately I tested this before installing and found the tap was glued open. Screwfix refunded without question but it could have been messy!
These full bore taps are important for low pressure systems but check them first as the glued design is very different to the small bore ones."
1 of 1 people found this review helpful.
Review 19 for 15mm Full Bore Isolating Valve
Overall Rating: 
2 out of 5
2 out of 5
Value: 
2 out of 5
2 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
3 out of 5
3 out of 5
Would you recommend this product? No
Overall Rating: 
2 out of 5
2 out of 5
Value: 
2 out of 5
2 out of 5
Features: 
3 out of 5
3 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
3 out of 5
3 out of 5
Full bore isolating valve
29 Jan 2013
By Deckindad
, Southall Middx
"Fitted well but could I turn the isolating screw? Even with a large flat head screwdriver, I found this to be extremely difficult. If they are all like this then I would steer clear. Same problem with the 22mm version also."
Review 20 for 15mm Full Bore Isolating Valve
Overall Rating: 
1 out of 5
1 out of 5
Value: 
1 out of 5
1 out of 5
Features: 
1 out of 5
1 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
1 out of 5
1 out of 5
Would you recommend this product? No
Overall Rating: 
1 out of 5
1 out of 5
Value: 
1 out of 5
1 out of 5
Features: 
1 out of 5
1 out of 5
Performance: 
1 out of 5
1 out of 5
Reliability: 
1 out of 5
1 out of 5
It didn't isolate
17 Nov 2012
By SteveMJ
, Hertfordshire
"Fitted two of these as tap isolators - drip drip drip, when the water put back on and before taps were fitted.
Useless. Replaced these by another product. Very dissapointed."