Sorry, this product cannot be purchased. Pressure Release Kit 40mm Suited for 40mm pipe work to relieve pressure at pump for disconnection Part# 10035885 SKU: 10035885 Categories: Lorentz accessories, Sun Mill/Solar Mill accessories Related products Pressure switch 2/11 $83.00 2/11 pressure range 30-90M used for auto on/off function Part# 10001900 Submersible Pump pressure switch kit for on/off control with Lorentz pumps Part# 61000065 Cable pressure switch $28.60 for connecting pressure switch to Maximiser for auto on/off function Part# 10035600 Lorentz PS2 Manual Speed Control Device to provide manual motor speed control of PS2 systems part# 19-000035