Basic 17 Inch Filter Disc - Residential sign-subject_First Aid This is a Gast Regenair

This is a Gast Regenair Series R4P Blower

This is an ABS Hydrostatic Relief Valve for a 1-1/2 inch internal NPT or 2 inch NPT sump

a concrete bolt and concrete drill

It fits SP1082 to SP1086 Skimmers that use the SPX1082CA or B-152 basket

They can be used on Schedule 40 or 80 pipe

Basic 17 Inch Filter Disc - Residential sign-subject_First Aid This is a Gast RegenairThis is a 17 inch filter disc made by Universal Filtration. The disc OEM style is designed for basic residential DE filters. A spacer is required (not included). Universal Filtration discs are injection molded from 100% virgin, high impact styrene. They are then covered with multi filament, polypropylene fabric the industry standard for over 30 years.