Tee, Slip x Slip x Slip PVC Schedule 40 1-1/4" (401-012)

This 1-1/4" Schedule 40 PVC Equal Tee provides a full-size, solvent-cemented branch outlet off a 1-1/4" PVC main run, with all three slip socket ends accepting standard 1-1/4" PVC pipe for solvent cement joining. The two run ports maintain the straight-through flow path of the main, while the branch outlet presents an equal 1-1/4" socket perpendicular to the run — delivering the same full pipe diameter at the branch as at the run, with no size reduction at the tee body.

The 401-012 is the correct selection whenever a 1-1/4" Schedule 40 cemented run must branch at a point where the branch requires the same 1-1/4" flow capacity as the run. The equal tee is the direct solution — all three sockets are identical, all three connections are cemented 1-1/4" PVC pipe, and no size reduction occurs at the tee body. This distinguishes it from the three standard reducing tees already written in the 401-series at the same 1-1/4" run size. The 401-168 (1-1/4" × 1-1/4" × 1") branches at 1" for a one-step branch reduction. The 401-167 (1-1/4" × 1-1/4" × 3/4") branches at 3/4" for a two-step branch reduction. The 401-166 (1-1/4" × 1-1/4" × 1/2") branches at 1/2" for the deepest three-step branch reduction. The 401-012 serves all positions where the branch capacity must match the run — the equal configuration at the start of the branch size selection hierarchy at 1-1/4".

At 1-1/4", the equal tee appears at positions in commercial and residential Schedule 40 systems where the 1-1/4" transitional pipe size serves a specific flow requirement and the branch must carry the same capacity as the main run. Pump suction manifolds where two parallel 1-1/4" suction lines must branch at equal capacity from a common 1-1/4" header, secondary distribution systems where a 1-1/4" header splits into a 1-1/4" branch continuation and a 1-1/4" zone supply, and equipment supply headers where the full 1-1/4" capacity must be maintained through both the run and the branch are all configurations where the equal tee is the correct and direct selection. Whenever any of the three reducing tee siblings would be selected, the selection criterion is a branch requiring less capacity than the run — and whenever that criterion is not met, the 401-012 equal tee is the fitting.

The 401-012 is also the correct fitting at positions where the 1-1/4" run must branch to another 1-1/4" cemented pipe component — not necessarily for capacity reasons, but because the downstream branch connection is a cemented 1-1/4" pipe run rather than a threaded component. The 402-series mixed-connection tee (Slip × Slip × FPT) at 1-1/4" serves positions where the branch must connect to a threaded component; the 401-012 serves positions where the branch continues as a cemented pipe run at the full 1-1/4" pipe size.

The 401-012 is the Schedule 40 counterpart to any Schedule 80 equal tee at 1-1/4" (801-series at 1-1/4" if stocked). The all-socket equal tee function is identical across both schedules; schedule selection is governed by system pressure requirements and the schedule of the surrounding pipe and fittings.

The all-socket construction of the 401-012 integrates seamlessly into solvent-welded Schedule 40 systems, maintaining pressure rating consistency through every joint at the tee without introducing threaded interfaces. The result is a permanent, monolithic branch point that becomes an integral structural component of the piping system once cured.

Manufactured in white Schedule 40 PVC, this tee delivers reliable performance across residential, commercial, and light industrial piping applications. PVC's resistance to acids, bases, salts, chlorine, and common process fluids provides long service life where metal tees would corrode or scale. NSF/ANSI 61 and NSF/ANSI 14 listings confirm suitability for potable water contact.

Rated to 280 psi at 73°F, this fitting handles standard pressure service across irrigation, pool and spa, commercial plumbing, water treatment, and light industrial applications. Three separate solvent-cemented joints must be made at installation. Clean and dry each pipe end and socket interior before application. Apply purple PVC primer to all mating surfaces — both 1-1/4" run port sockets, the 1-1/4" branch socket, and all three corresponding pipe ends. Apply a uniform coat of Schedule 40 PVC solvent cement to both the pipe end and socket interior at each joint before inserting. Insert each pipe with a slight quarter-turn twist and hold firmly for 30 seconds. Stagger the three joints where possible and allow full cure time per the cement manufacturer's temperature and humidity guidelines before pressurizing. Apply published pressure derating factors for service temperatures above 73°F.

Specifications:

Industries & Applications:

• Pump Suction & Discharge Manifolds — Branches a full-size 1-1/4" supply line off a 1-1/4" solvent-cemented Schedule 40 PVC pump manifold header at parallel suction splits, discharge distribution branch points, and equipment supply manifold positions in residential and commercial pump station assemblies where the full 1-1/4" branch capacity matches the run requirement and all three connections are cemented PVC pipe — a defining application for the 1-1/4" equal tee given the prevalence of 1-1/4" at pump manifold positions
• Strainer & Filter Approach Distribution — Provides a full-size 1-1/4" branch off a 1-1/4" solvent-welded Schedule 40 PVC distribution header at parallel strainer approach branch positions, filter vessel supply splits, and secondary distribution manifold positions in commercial and residential systems where the 1-1/4" branch must carry the full run capacity to a parallel strainer or filter approach run
• Commercial & Residential Irrigation — Taps a full-size 1-1/4" branch off a 1-1/4" Schedule 40 PVC secondary lateral or transitional submain at equal-capacity zone supply splits, secondary distribution branch points, and lateral takeoff positions in residential and commercial irrigation systems where the branch must carry the same 1-1/4" capacity as the main run throughout the solvent-welded system
• Commercial Plumbing — Branches a full-size 1-1/4" supply line off a 1-1/4" solvent-welded Schedule 40 PVC secondary water supply header at equipment feed connections, equal-capacity zone supply takeoffs, and secondary distribution branch points in commercial building water distribution and mechanical room systems where the 1-1/4" branch matches the run capacity requirement
• Water & Wastewater Treatment — Provides a full-size 1-1/4" branch off a 1-1/4" Schedule 40 PVC secondary distribution header at parallel equipment supply splits, process branch connections, and zone supply takeoffs in light-duty municipal and industrial water treatment facilities where the branch must carry the full 1-1/4" capacity of the transitional distribution run
• Light Industrial Process Piping — Taps a full-size 1-1/4" branch off a 1-1/4" solvent-welded Schedule 40 PVC process distribution header at equal-capacity equipment supply splits, parallel process branch positions, and secondary distribution takeoffs in light industrial Schedule 40 systems where the branch requires the full 1-1/4" transitional pipe capacity at the tee body
• Secondary Header Equal-Split Distribution — Delivers a full-size 1-1/4" branch at equal-split distribution positions across all Schedule 40 system types where the 1-1/4" transitional pipe size bridges the gap between 1" and 1-1/2" in the distribution hierarchy and the branch must carry the same capacity as the run — the foundational equal-split branch fitting at the 1-1/4" pipe size in fully solvent-welded Schedule 40 systems