PentairĀ® MasterTemp 300NA 300LP Swimming Pool Heater Tube Sheet Coil 474063
- PentairĀ® 474063 Tube Sheet Coil Assembly Kit For Model 250HDNA, 250HD-LP MasterTemp(R) Heater
- This is a Cupro Nickel tube sheet used in model 460806.
- Heavy Duty Model
- Kit includes Clamp, O-Ring, and Silicon Tube
- 707-0119
- The tubes on PentairĀ® MasterTemp and Sta-Rite Max-E-Therm heat exchangers (tube sheet assembly) is a generally round shape instead of being straight and flat like most other heaters on the market.
- The plate at the end of the tubes measures 5-1/2″ wide x 8-1/2″ tall.Ā Approximate width side to side is 13″.Ā The approximate length from the end of the plate to the opposite end of the coil is 15″.
- The 250K BTU model tube sheet contains 6 coiled copper tubes.
- This kit also includes:
-Tube of high temp RTV silicon
-O-Ring Kit (set of 12) part number 77707-0119
Please be advised that certain manufacturers - including Pentair® (with their TradeGrade® products), Jandy®/Fluidra® (with their Trade Series Exclusive™ products), and Hayward® (with their Expert Line® products) - do not honor manufacturer warranties on specific product lines purchased online.
These policies are intentionally enforced by the manufacturers to prevent customers from purchasing the same products at lower prices online.
Warranty coverage for these products is generally only available when purchased in person from an authorized local dealer.
While we strive to take care of our customers by offering the lowest possible prices on brand new, genuine products, we do not provide warranty coverage ourselves, nor can we guarantee that the manufacturer will honor the warranty on products purchased from our online store.
It is the buyer’s responsibility to confirm warranty eligibility directly with the manufacturer before making a purchase.
If you are a local customer, you may be able to purchase these items in-store and obtain manufacturer warranty coverage. However, for many of our customers across the country, paying significantly more locally just to access a manufacturer warranty often doesn’t make financial sense, especially when some local suppliers charge considerably higher prices.
By completing your purchase, you acknowledge and agree that we are not responsible for warranty support or claims denied by the manufacturer due to their online sales restrictions.


Zoey Cox –
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