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White flexible plastic saddle tee with 4-inch branch outlet for 6-inch pipe

Fernco Inc.

Fernco Inc. TST-4 4 in flexible plastic tap saddle tee trap

SKU CH-VH3C-6RAGZ MPN TST-4

A flexible plastic tap saddle tee that connects a 4 in branch to a 6 in PVC drain pipe

  • Product typeDrain Components
  • Fits 6 in nominal pipe for secure drainage connections
  • 4 in flexible PVC tee adapts to existing lines
  • Female socket design simplifies solvent-weld installation
  • Durable plastic construction resists corrosion in waste systems

4 in flexible tap saddle tee

The Fernco TST-4 is a flexible plastic tap saddle tee designed to create a branch connection on a 6 in nominal pipe. It accepts a 4 in pipe at the outlet and uses a solvent-weld female hub for the joint. Plumbers and drainage installers use it when adding a new fixture line to an existing PVC run without cutting out a full section.

Thermals noise and power draw not applicable

This is a passive PVC fitting with no moving parts, electrical supply or active cooling. It generates no heat, produces no noise and draws no power during normal operation. Long-term performance depends on correct solvent-cement assembly and the surrounding pipe support rather than any thermal or acoustic characteristic.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $48.99
Pricier than about 62% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameFernco
Model nameTST-4
Product typeDrain Components

Questions about this item

How do I install the Fernco TST-4 tap saddle tee onto a 6-inch pipe without damaging the PVC?

Cut a 4-1/2 inch hole in the 6-inch pipe, lubricate the saddle gasket, position the tee over the opening, then tighten the stainless-steel band clamps evenly until the gasket seals without over-torquing.

What maintenance will the Fernco TST-4 saddle tee require after installation?

Inspect the band clamps and gasket annually for corrosion or leaks; re-tighten clamps if seepage appears, and replace the rubber gasket if it hardens or cracks over time.

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