Push Fit Air Admittance Valve Black £11.99
110mm black push-fit air admittance valve. Avoids the need to penetrate the outer roof shell. Remove the seal to convert to an 82mm solvent air admittance valve.
110mm black push-fit air admittance valve. Avoids the need to penetrate the outer roof shell. Remove the seal to convert to an 82mm solvent air admittance valve.