Pasco 5633SR 3" Cast Iron/Plastic to Cast Iron/Plastic Flexible Coupling with Stainless Steel Ring
The Pasco 5633SR is a 3" flexible coupling built for behind-the-wall drain-waste-vent transitions where a rough-in plumber needs to join cast iron or plastic pipe to cast iron or plastic pipe on the opposite side. The coupling body carries a stainless steel ring for added clamping strength at the joint, giving the installer a dependable mechanical connection without solvent welding or caulked joints. This is a rough-in trade part intended for use behind walls, under floors, and in DWV stacks - not a decorative or exposed fixture component.
Key Features
- Trade Size: 3" nominal, sized for standard 3" DWV cast iron or plastic pipe runs.
- Universal Transition: Connects cast iron or plastic pipe on one side to cast iron or plastic pipe on the other, making it a flexible choice for mixed-material stacks encountered during repair or renovation work.
- Stainless Steel Ring: Reinforces the coupling body at the clamp point for a secure, long-lasting mechanical joint.
- Flexible-Coupling Design: Allows the installer to join dissimilar pipe materials without cutting new hub-and-spigot joints or re-running solvent-welded plastic.
- Consumer Package Weight: 1.06 LB per package, useful for shipping and stocking calculations on the truck or in the warehouse.
- Packaging: Supplied 30 EA per case, with a minimum order quantity of 1 EA and an order quantity multiple of 12 EA for larger jobs.
Technical Specifications
- Product Type: Home Improvement & Commercial Supplies - Plumbing Accessories
- Consumer Package Weight: 1.06 LB
- Quantity: 30 EA
- Minimum Order Quantity: 1 EA
- Order Quantity Multiple: 12 EA
- Prop 65 Warning: Y
Typical Applications
- Residential and Commercial Rough-In Plumbing
- DWV Stack Repairs and Renovation Transitions
- Cast Iron to Plastic Pipe Conversions
- Behind-the-Wall and Under-Floor Drain Line Connections
- New Construction Plumbing Rough-In
Why Pasco?
Pasco builds this 5633SR flexible coupling with a stainless steel ring to give plumbers and contractors a dependable way to bridge cast iron and plastic pipe in the same DWV run, without the extra labor of cutting new hub joints or reworking existing stack material. The reinforced ring construction is intended to hold up to the demands of rough-in work behind walls and under floors, and the 30 EA case pack with a 12 EA order multiple makes it practical to stock for repeat rough-in and repair jobs. Note the Prop 65 warning applies to this product as stated by the manufacturer.
Ordering note: this listing carries a California Proposition 65 warning as indicated by the manufacturer; refer to the product packaging for full warning language before installation.
"Manufacturer Resources
Product Specs
- Minimum Order Quantity:
- 1 EA
- Product Type:
- Flexible Coupling
- list_batch:
- PAO-20260924
- Product Subgroup:
- Fittings and Valves
- Prop 65 Warning:
- Y
- Department:
- Plumbing