Home & Garden · Line Set
MRCOOL DIY® 5th Gen 25 ft. 1/4" x 1/2" Pre-Charged Quick Connect Line Set with DIY Pro Cable - R454B (for 18K Indoor Units)
MRCOOL · sold by Premium Home Source · $436.00 · in stock

The MRCOOL® DIY® 25 ft 1/4 x 1/2 Line Set (Model: DIY25-1412-O) is designed to work seamlessly with DIY® 18K indoor units. Pre-charged with R-454B refrigerant, this line set ensures efficient performance, quick installation, and long-lasting reliability. Featuring patented Quick-Connection fittings, it allows homeowners to set up their own system without the need for specialized HVAC tools, making it a perfect accessory for the MRCOOL® DIY® Mini-Split systems. Pre-Charged Convenience: Factory pre-charged with eco-friendly R-454B refrigerant for immediate use. Quick-Connection Fittings:…
| Option | Price | Stock | |
|---|---|---|---|
| Default Title | $436.00 | in stock | Compare delivered price → · Checkout at Premium Home Source |
Prices and stock from www.premiumhomesource.com’s public catalog, last checked 2026-11-11 03:36 UTC. “Order via Kaupia” shows the delivered price to your zip (item + the store’s shipping + est. tax) for participating merchants, which fulfill directly. “Checkout at the store” uses the store’s own payment and support. Agents: JSON at https://api.kaupia.com/v1/product?id=kp:de00963a-8b58-45f7-b375-dd3a9d672bb1; delivered price GET /v1/quote; order with POST /v1/orders or MCP place_order.