Pentair Insulation Kit | MasterTemp & Max-E-Therm Heaters | 77707-0008

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Pentair Insulation Kit | MasterTemp & Max-E-Therm Heaters | 77707-0008

Pentair Insulation Kit | MasterTemp & Max-E-Therm Heaters | 77707-0008

Original price was: $143.19.Current price is: $75.70.

68 in stock

SKU: 77707-0008 Category:

Description

The Pentair Insulation Kit (77707-0008) is the OEM replacement insulation kit for the MasterTemp and Max-E-Therm heater series, restoring the thermal barrier that protects the heater cabinet and surrounding components from combustion heat.

⚠️ IMPORTANT: KIT LISTING — MULTIPLE PIECES INCLUDED
This listing is a kit — not a single piece. The kit contains multiple insulation components (see item numbers listed in the Specifications table below). Confirm which item numbers your heater model requires before ordering, as kit contents vary by model.

⚠️ IMPORTANT: HEATER COMPONENT — PROFESSIONAL SERVICE REQUIRED
Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high-voltage components without proper certification.

The insulation kit maintains the thermal efficiency of the MasterTemp and Max-E-Therm heater by lining the combustion chamber and cabinet interior. Degraded or missing insulation allows heat to transfer to surfaces it was not designed to contact, accelerating wear on adjacent components and reducing heater efficiency. Replacing worn or damaged insulation restores the heater’s designed thermal management and protects the surrounding structure.

Specifications

Pentair Part Number 77707-0008
Part Name Insulation Kit
Kit Contents Includes Item Nos. 13, 14, 16, 17, 18, 19 (MasterTemp 125); Item Nos. 13, 15, 20, 21, 22, 23, 24, 25, 26 (MasterTemp 200–400 / Max-E-Therm 333)
Quantity Included Kit (multiple pieces — contents vary by model; see Kit Contents above)

Fits Into

Brand Equipment Line Model / Part Number Notes
Pentair MasterTemp 125 Heater MasterTemp125 Includes Item Nos. 13, 14, 16, 17, 18, 19
Pentair MasterTemp 200NA Heater 200NA Includes Item Nos. 13, 15, 20, 21, 22, 23, 24, 25, 26
Pentair MasterTemp 200LP Heater 200LP Includes Item Nos. 13, 15, 20, 21, 22, 23, 24, 25, 26
Pentair Max-E-Therm 333 Natural Gas 333NA Includes Item Nos. 13, 15, 20, 21, 22, 23, 24, 25, 26
Pentair Max-E-Therm 333 Propane 333LP Includes Item Nos. 13, 15, 20, 21, 22, 23, 24, 25, 26
Pentair MasterTemp 400NA Heater 400NA Includes Item Nos. 13, 15, 20, 21, 22, 23, 24, 25, 26
Pentair MasterTemp 400LP Heater 400LP Includes Item Nos. 13, 15, 20, 21, 22, 23, 24, 25, 26

Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment’s manual or on the original part itself before ordering.

Pro Tip

Kit contents differ between the MasterTemp 125 and the larger MasterTemp / Max-E-Therm models — confirm your exact model number before ordering. Cross-reference the item numbers listed in your heater’s exploded diagram against the kit contents shown above to ensure you are receiving the correct insulation pieces for your unit. If your heater has been in service for several years and the insulation shows discolouration, crumbling, or separation from mounting surfaces, replace the full kit rather than individual pieces to restore complete thermal protection in a single service visit.

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