Cassette, 37mm 2pc 5.0µm PVC, 50/Box Back Catalog number: GCU37500PVC-2 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800252 Single Variable Flow Starter Kit (Includes 6x70mm, Price on request 811-0920-01 Replacement Valve Caps (Pack of 2) Price on request 801000-1 Power Module, 120V/230V/DC, without plug (used wit Price on request