Product Information Description: Plasson Compression Fittings Includes: 2 Split Rings, 2 Seals, 2 Nuts Material: Polypropylene, high-grade copolymer, Split Ring: Polyacetal Seal: NBR Pressure Rater Water: PN16 Select a Product Part NumberSize PCF-COUP-63-2563mm x 25mm PCF-COUP-63-3263mm x 32mm PCF-COUP-63-4063mm x 40mm PCF-COUP-63-5063mm x 50mm PCF-COUP-90-6390mm x 63mm PCF-COUP-110-63110mm x 63mm