Raypak AVIA HD NiTek 264A
For salt pool owners who want the AVIA features with a tougher heat exchanger and will pay extra for it.
Amazon $4,007$4,007
264,000 BTU/h84%3 years
2.8/5
For a typical in-ground pool on Pentair automation that wants faster heat than a 250 without the gas line a 400 needs.
- 300,000 BTU/hHeating input
- 84%Efficiency
- Natural gas or propaneGas type
- 1 yearWarranty
Check price at Amazon$4,099.99
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Fills the gap between the 250 and 400 for a mid size in-ground pool
- Low NOx and certified for indoor or outdoor installs
- RS-485 link to Pentair automation for scheduling and app control
Cons
- Only a 1 year parts warranty when bought online
- Plain copper heat exchanger is less forgiving of salt and low pH than cupro-nickel
- Needs a large gas supply line
The Pentair MasterTemp family
Every Pentair MasterTemp model we rank, smallest first. Ratings compare each against its own size.
| Model | Heating input | Rating | Price |
|---|---|---|---|
| Pentair MasterTemp 125 | 125,000 BTU/h | 2.6/5 | $2,098 |
| Pentair MasterTemp 200 | 200,000 BTU/h | 3.4/5 | $3,549 |
| Pentair MasterTemp 250 | 250,000 BTU/h | 2.7/5 | $3,098 |
| Pentair MasterTemp 300 (this one) | 300,000 BTU/h | 2.8/5 | $4,099.99 |
| Pentair MasterTemp 400 | 400,000 BTU/h | 3.9/5 | $4,079 |
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | 460734 |
|---|---|
| Heating | |
| Gas input | 300,000 BTU/h |
| Gas type | Natural gas or propane |
| Thermal efficiency | 84% |
| Condensing | No |
| Low NOx | Yes |
| Heat exchanger | Copper |
| Max water flow | 120 GPM |
| Installation and controls | |
| Ignition | Electronic |
| Venting | Both |
| Digital controls | Yes |
| Automation or app | Yes |
| Weight | 136 lb |
| Warranty | 1 year |
Alternatives in this size
Raypak Digital 266A
Good value for in-ground pools outside low NOx areas, provided it comes from an authorized dealer so the warranty holds.
Amazon $3,249$3,249
266,000 BTU/h82%2 years
Pentair MasterTemp 250
A strong pick for in-ground pools already on Pentair automation, though online buyers get only a short warranty.
Amazon $3,098$3,098
250,000 BTU/h84%1 year
Compare
Compare the Pentair MasterTemp 300 with any other gas pool heater →
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