McAlpine R29-NRV 90degree Elbow with integral Non-Return Valve Plain Tail Inlet x 19/23mm Universal Outlet

McAlpine R11 Straight Connector 1" loose nut x connection for 19/23mm pipe

McAlpine R12 Four Way Connector 1" loose nut x four connections for 19mm pipe, supplied with 3 Plugs

McAlpine S28M-NRV 1.25" Multifit In-Line Non-Return Valve

McAlpine R14 " In-Line Non-Return Valve

McAlpine Multifit Non Return Valve 2'' Z28M-NRV

McAlpine CONVALVE In-Line Vertical Non-Return Valve

McAlpine R4 0.75" Straight Overflow Tank Connector

McAlpine Z28M-NRVS Solvent Weld In-Line Non-Return Valve

McAlpine R15 2 Way Connector: 1" loose nut x two connections for 19mm pipe, supplied with 1 Plug

McAlpine R4M 19/23mm Universal Multifit Straight Tank Connector

McAlpine CONVALVE-125P Convalve Non-Return Valve with .25" Plain Tail x .25" Universal Outlet

McAlpine In Line Vertical Non Return Valve with Inlet & Outlet Connection for 19/23mm Pipe CONVALVE-125

McAlpine R28-NRV Non-Return Valve with 19/23mm Universal Connections

McAlpine R1M 19/23mm Universal Straight Overflow Connector