Product images: Amazon listings
Written from the listing's specs, not from our own use · How we rate
2" stainless horizontal venting is the headline feature of the Rheem RTG20280-1 Vent Termination Kit. Think of it for finishing the vent run of a gas tankless: 7.3/10 on what its listing documents.
| Brand | Rheem |
|---|---|
| Category | Service kits, valves & parts |
| Sold for | Rheem |
| Part number | RTG20280-1 |
| ASIN | B0F7Y93K4L |
Full listing title: Rheem RTG20280-1 Tankless Horizontal Vent Termination Kit
Rated from the listing's specs, no buyer reviews yet
What it's made for: finishing the vent run of a gas tankless.
Two vent kits close to it on our rating, each with a dated price.
The size the listing states. Diameter, material and termination all have to be on your heater maker's approved list; venting is the one part of a gas install nobody should improvise.
What it has going for it
For Rheem. Parts like this are model-specific. Match the part number in your manual before you order.
The listing names 2" venting, stainless steel, a horizontal termination, a listing for Rheem heaters and part RTG20280-1.
Only venting on your heater maker's approved list is safe to use. Match the part number in the installation manual before you order.
What the Rheem RTG20280-1 Vent Termination Kit listing names:
Check these figures against your heater's manual before you order.
On Sep 30, 2026, that price put it around the middle of the 7 vent kits we have a recent price for.
Gas and vent work is a job for a licensed installer, and the permit, where your town asks for one, comes on top.
The button opens the exact listing (ASIN B0F7Y93K4L), where today's price, stock and seller apply.
Our take
The best thing about the Rheem RTG20280-1 Vent Termination Kit is 2" stainless horizontal venting. No buyer reviews yet, so this Rheem vent kit has to win you over on paper. Honestly, the catch: a vent part is only safe if your heater's manual approves that exact system. We'd pick it if your heater manual lists this exact vent system; otherwise, put it next to the GASLAND 3" Stainless Vent Pipe Kit first.
Before you order the Rheem RTG20280-1 Vent Termination Kit, check your heater's vent list: it is 2" pipe, and only the vent parts your heater's manual approves are safe.
This is 2" pipe. Only the vent components your heater's manual approves are safe. Same diameter is not enough.
Distance to windows, doors and the ground is set by the manual and local code. Our installation guide covers the questions to ask.
Venting carries exhaust out of the house: a licensed plumber or gas fitter signs it off.
How the Rheem RTG20280-1 Vent Termination Kit stacks up against the closest alternative, the GASLAND 3" Stainless Vent Pipe Kit.
| Criterion | Rheem RTG20280-1 Vent Termination Kit | GASLAND 3" Stainless Vent Pipe Kit |
|---|---|---|
| Our rating | 7.3/10 | 7.1/10 |
| Fits | Rheem | Not stated |
| Size | 2" | 3" |
On our rating, the Rheem RTG20280-1 Vent Termination Kit comes out ahead (7.3 vs 7.1), so it is the one to start with.
We rate it 7.3/10 (good). The rating comes from its documented listing alone, as no customer-review record is captured yet.
Its listing states 2" stainless horizontal venting. These are the seller's figures, not our measurements: whether it fits your exact heater is worth confirming first.
Your heater's vent list: this is 2" pipe. Only the vent components your heater's manual approves are safe. Same diameter is not enough. Clearances: distance to windows, doors and the ground is set by the manual and local code. Our installation guide covers the questions to ask. Who installs it: venting carries exhaust out of the house: a licensed plumber or gas fitter signs it off.
We link to the exact listing on Amazon, where today's price, stock and seller apply. It is an affiliate link, and it has no effect on the rating.
No, we haven't used it ourselves. Everything on this page comes from its listing, read line by line and weighed with our published formula.