The new and patented 4 and 6 in PVC Pop Top Relieve Caps open by hydrostatic pressure which allows excess or backed up water in DWV lines, catch basins, channel drains, down spouts, gray or rainwater storage tanks or roof gutter systems to be discharged or diverted and released in water safe areas.

PASCO Pop Top Drain Water Relieve Cap, 4 in Dia, PVC

• The pop top can also be installed in any size drain line and to any style drain pipe by the use of a PASCO flex coupling or reducing flex coupling
• The pop top simply threads into a 4 in DWV Female x socket adapter

• Specification Sheet https://hs-beta.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/https://assets.unilogcorp.com/2/ITEM/DOC/Pasco_62304_Specification_Sheet.pdf