
1/2BP90ST – BLACK STEEL GAS PIPE (1/2″ STREET ELBOW)
PVC, gas pipe and conduit are not interchangeable and each carries its own code requirements. The one that catches people out is flue venting: only a condensing furnace vents into plastic, and only the material the manufacturer specifies. An 80% furnace goes into metal B-vent.
10226 Plano Rd, Suite 104, Dallas TX 75238
Questions? Call or text (214) 340-9421
Mon–Fri 10 am – 7 pm | Sat 10 am – 3 pm
A street elbow has one male and one female thread, so it screws directly into another fitting without needing a nipple in between. Saves space and reduces leak points in tight gas pipe runs.
Specs: 1/2″ MPT x FPT, 90-degree street elbow, black malleable iron
Replaces: 0810016212, MBA90S4
Fits: Universal — any 1/2″ NPT gas piping system
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
- TypeGas pipe or fitting
- Size1/2"
- Detail1/2" STREET ELBOW
Cross-reference numbers
This part replaces the following OEM and aftermarket numbers:
- 0810016212
- 12BP90ST
- BLACK-PIPE
- MBA90S4
Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.
Fits these models
- STZINDUSTRIES12STREETELBOW
- WARD12STREETELBOW
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.




