| 20mm Wilkins Double Check Valve only | W19.350L |
| 20mm Wilkins Double Valve with Ball Valves and Strainer | W19.350S |
| 25mm Wilkins Double Check Valve only | W25.350L |
| 25mm Wilkins Double Check Valve with Ball Valves and Strainer | W25.350S |
| 32mm Wilkins Double Check Valve only | W32.350L |
| 32mm Wilkins Double Check Valve with Ball Valves and Strainer | W32.350S |
| 40mm Wilkins Double Check Valve only | W40.350L |
| 40mm Wilkins Double Check Valve with Ball Valves and Strainer | W40.350S |
| 50mm Wilkins Double Check Valve only | W50.350L |
| 50mm Wilkins Double Check Valve with Ball Valves and Strainer | W50.350S |
| 65mm Wilkins Double Check Valve only | W65.350L |
| 80mm Wilkins Double Check Valve only | W80.350L |
| 100mm Wilkins Double Check Valve only | W100.350LD |
| 150mm Wilkins Double Check Valve only | W150.350L |
| 200mm Wilkins Double Check Valve only | W200.350L |
