1 x Compression Brass 28mm Blanking Disc for 28mm Compression Fittings Use instead of adding more copper pipe and using a stopend. Replaces olive in fitting to cap off water supply Can be used on compression couplers, tees etc Ideal if you are short on space Tapered design for 100% seal. Must be installed on a compression fitting only., Weight: 0.07 Pounds, Manufacturer: Primaflow