Hi-Temp Union

These Hi-Temp Self-Sealing Unions are engineered for high-performance pool and spa plumbing systems that require durability in heat and chemical exposure. Available in two configurations — 1.5″ MIP × 2″ Socket and 2″ MIP × 2″ Socket — both unions are constructed from heat-tolerant CPVC / Noryl resin with a self-sealing T-gasket design. They eliminate the need for sealants or tape, making installation cleaner and safer. These unions are ideal for connecting pumps, filters, heaters, or other pool equipment in systems where temperature swings and chemical exposure are common.

Models Covered:

1.5″ MIP × 2″ Socket (UPC 849640000311 / Part # 21063-160-000)

2″ MIP × 2″ Socket (UPC 849640000366 / Part # 21063-200-000)

Material: High-temperature CPVC / Noryl resin

Color: Black

Seal Type: Self-sealing T-gasket design — no thread tape or sealant required

Connection Type: Male Iron Pipe Thread (MIP) × Socket (Slip)

Temperature Rating: Designed for high-heat pool and spa systems

Pressure Rating: Suitable for standard pool-system pressures (up to 150 psi)

Chemical Resistance: Excellent resistance to chlorine, acids, and standard pool chemicals

Application: For connecting pumps, heaters, filters, and other pool/spa equipment

Installation Benefit: Allows easy equipment removal and re-installation without cutting plumbing

Design: “Hi-Temp” body prevents warping or leaking under elevated temperature and pressure

Usage Environment: In-ground pool, spa, or commercial aquatic systems

Weight: Approx. 0.3–0.4 lb per union

Dimensions: Fits standard Schedule 40 PVC plumbing

Maintenance: Replace gasket if worn; inspect seal annually for best performance