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GeneralAire GA35 Water Panel

OEM part number(s): GA35, GFI #7915 · Made by GeneralAire (GFI) · Whole-house water panel / pad

Lowest verified price: $15.52 — aftermarket, 1 panel, BestAir A35 aftermarket at SupplyHouse. Free shipping on orders over $99 at SupplyHouse; a fee applies below that. Checked 2026-11-11.

Buy on Amazon — GA35Amazon search for the exact part number (no single listing is endorsed). Amazon price is shown on Amazon; we do not quote it here.

Verified prices (checked 2026-11-11)

Option	Price	Store & shipping
Genuine (OEM) 1 panel, genuine GeneralAire GA35	$19.38	SupplyHouse Free shipping on orders over $99 at SupplyHouse; a fee applies below that · Checked 2026-11-11 · source
Aftermarket 1 panel, BestAir A35 aftermarket	$15.52	SupplyHouse Free shipping on orders over $99 at SupplyHouse; a fee applies below that · Checked 2026-11-11 · source
Genuine (OEM) 1 panel, genuine AprilAire 35 (the equivalent panel for 4200/4400)	$34.95	FiltersFast Free economy shipping on orders $99+ (lower 48); a fee applies below that · Checked 2026-11-11 · source

How to read this: the lowest verified price above is the headline even when it is not Amazon. Amazon is the buy button because it is this site's affiliate route; its price is not quoted because Amazon blocks automated price reads.

Exact fit — models that take this part

GeneralAire 4200, GeneralAire 4400

Specifications

Replacement interval	Replace annually.
Dimensions	10 × 13 × 1.625 in

Equivalents and cross-references

Brand	Part number	Note
AprilAire	35	AprilAire #35 fits the GeneralAire 4200/4400 (GeneralAire's own 2024 price schedule lists 'Water Panel — 4200, 4400 (Previously #35)'). See the AprilAire #35 record.
Filters Fast	A35PR	Aftermarket equivalent family.

Sources

Full record, including descriptor data for every model, is in the open dataset: /data/parts.json.