3/4PVCTHREADEDCAP – PVC PIPE (THREADED CAP, 3/4″, SCH40)

A threaded PVC cap screws onto the end of a 3/4″ male threaded fitting to seal it off. In HVAC work, it’s commonly used to cap off drain line cleanout tees, test ports, or unused connections. The threaded design lets you remove and reinstall it for maintenance access.

Specs: 3/4″ female pipe thread (FPT), Schedule 40 PVC

Replaces: 448-007

Fits: Any 3/4″ male pipe thread connection. Standard HVAC drain line fitting.

In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.

Specs

• TypePVC pipe or fitting
• Size3/4"
• DetailTHREADED CAP, 3/4", SCH40

Cross-reference numbers

This part replaces the following OEM and aftermarket numbers:

• 34CAP-T
• 448-007

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.

Fits these models

• 34PVCTHREADEDCAP
• CHARLOTTEPIPETHREADEDCAP34
• CHARLOTTEPIPETHREADEDCAP34SCH40
• NIBCOTHREADEDCAP34
• NIBCOTHREADEDCAP34SCH40
• SPEARSTHREADEDCAP34SCH40

What is the difference between the pipe types you stock?

PVC is used for condensate drains and for venting high-efficiency furnaces. Black iron and CSST are gas. Conduit protects electrical. They are not interchangeable and each has its own code requirements.

Can I use PVC for a furnace flue?

Only on a condensing (90%+) furnace that is designed for it, and only the pipe schedule and material the manufacturer specifies. An 80% furnace vents into metal B-vent, never plastic - the flue gas is far too hot.

What size condensate drain line?

3/4 inch is the residential standard. Give it a consistent slope, put a cleanout at the top so it can be vacuumed, and fit a trap where the equipment calls for one.

Who can run gas pipe?

In Texas a homeowner may work on their own home under the homeowner exemption; that does not extend to doing it for someone else. Gas work is unforgiving and leak testing is not optional. If you are unsure, this is one to hand off.

Do you cut to length?

Ask at the counter. 10226 Plano Rd, Suite 104 in Dallas.