Everbuild-P18-Plumbers-Gas-Leak-Detector-Everbuild-P18GASLEAK-p-P18-Gas-Leak-Detector-is-a-specially-formulated-micro-porous-foam-designed-specifically-to-identify-even-the-smallest-positive-pressure-gaseous-leak-It-is-suitable-for-use-with-most-gases-&-is-compatible-with-paintwork-metals-wood-&-most-plastics-This-product-is-designed-to-be-used-to-trace-costly-&-potentially-dangerous-gas-leaks-Suitable-for-use-with-most-common-gases-including-Natural-&-town-gas-Compressed-Air