"Used this product with the No Nonense inhibitor. You get everything to do a proper job at such a low price. Pick on a rad and drain some of the water from it. Unscrew the rad cap and use this kit which will also screw to the top of the inhibitor bottle. undo the bleed screw on the rad and away you go. No mess and a job you will be pleased with."
"A useful warning about sealing the black fitting to the bottle. Wrap a few turns of ptfe tape round the bottle top thread before fitting the connector then it doesn't leak when you put the inhibitor in. I partially drained a radiator and measured 750 ml of removed water before adding the inhibitor. Easier than going up to the loft."
"Not bad for the price, it's only downfall is there is no rubber washer in the connector (cap) for the treatment bottles, so when filling the radiator you need to hold a cloth or tissue paper round the neck to catch the spillage, theres not a great deal of loss but enough to stain/damage a floor covering."
"If you purchase this product, don't expect it to fit on a 500ml bottle of 'no nonsence inhibitor', as described. The bottle fitting is a far bigger diameter than the bottle opening/thread. Having said that, if you can work around the above it's a soloution to getting the inhibitor into the radiator. I used a longer piece of hose and a funnel."