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LESSO ABS Closet Flange with Knockout Test Plug — 4×3 DWV, cUPC

LESSO ABS Closet Flange with Knockout Test Plug — 4×3 DWV, cUPC

Actual product specifications and colors may differ from the images displayed.

Regular price $6.79 CAD
Regular price Sale price $6.79 CAD
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Test First, Knock Out, Install

ABS closet flange with a moulded-in knockout test plug — the rough-in flange that seals the drain line for pressure testing the moment it's set, no test cap or balloon needed. The integrated plug holds an airtight seal through inspection and blocks sewer gas during construction; once the system passes, a hammer strike along the scored perimeter knocks the center out cleanly, leaving a standard opening for the toilet. The hub fits over 3" pipe or inside 4" pipe for either rough-in, and the slotted bolt holes let you align the closet bolts after gluing. It's a LESSO America ABS DWV fitting conforming to ASTM D2661 and CSA B181.1 with NSF/ANSI 14 and cUPC listings. The wax or rubber seal and closet bolts are sold separately. DWV service only; test hydrostatically, never with compressed air or gas.

Features
  • Knockout test plug — moulded-in cap seals the line for pressure testing and blocks sewer gas during construction
  • Clean removal — a scored perimeter lets a hammer strike knock the center out cleanly after inspection
  • Dual-fit hub — fits over 3" ABS pipe or inside 4" ABS pipe for either standard rough-in
  • Slotted bolt holes — rotate and align the closet bolts after the flange is glued down
  • LESSO America ABS DWV — conforms to ASTM D2661 and CSA B181.1, cUPC + NSF/ANSI 14 listed
  • Seal and bolts separate — wax or rubber seal and closet bolts are sold separately
  • DWV service only — not for pressure service; test hydrostatically, never with compressed air or gas
Specifications
  • Fitting Type: Closet Flange with Knockout Test Plug
  • Connection: Hub (fits over 3" pipe or inside 4" pipe)
  • Size: 4" x 3"
  • Feature: Moulded-in knockout test cap
  • Bolt Holes: Slotted / adjustable
  • Material: ABS (acrylonitrile butadiene styrene)
  • System: DWV (drain, waste, vent), non-pressurized
  • Pipe Compatibility: Schedule 40 IPS ABS
  • Joining Method: Solvent cement (ABS)
  • Certifications: cUPC, NSF/ANSI 14, ASTM D2661, CSA B181.1
  • Service Temperature: -40°F to 180°F (typical ABS DWV)
  • Colour: Black
Warranty Information
LESSO warrants this fitting against manufacturing defects in material and dimension. Coverage requires installation per ASTM D2661 and CSA B181.1 using ABS solvent cement. Damage from pressure service, compressed-air testing, solvent misuse, or installation outside published DWV practice is not covered.
LESSO ABS Closet Flange with Knockout Test Plug — 4×3 DWV, cUPC