1.50" Shur-Lock II Coupler (SDR 1.900" ± .020"). Airtight/watertight HDPE/PVC coupler with stainless steel band clamps and locking ring, pre-lubricated O-ring (125 PSI rating). Re-enterable; no special tools required. Packaging: 10 per case. See manufacturer spec sheet for full installation guidance and ETL/UL listings.