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Browse ProductsInstallation Supplies
Shop HVAC Installation Supplies at National Air Warehouse. Compare brands, sizes and efficiency ratings, and order online with support from our HVAC team.
Talk to an expert
Need help choosing the right system or part? Curious about how shipping works? Call or live chat to speak with one of our knowledgeable professionals, Mon – Fri 8AM to 5PM ET.
In Stock 1/4" LL x 3/8" SL Mini Split Refrigerant Line Set w/ Flare Nuts 1/2" Insulation (15') B143812015F B143812015F
$122.68
Shipping included
In Stock 1/4″ LL x 3/8″ SL Mini Split Refrigerant Line Set w/ Flare Nuts 1/2″ Insulation (25′) B143812025F B143812025F
$142.97
Shipping included
In Stock 
In Stock AC Zincs Corrosion Grenade (5/8", 3/4", 7/8", 1-1/8") ACZ- (5/8 or 3/4 or 7/8 or 1 1/8)
$33.52
Shipping included
In Stock 
In Stock 
In Stock HARDCAST Foil-Grip Rolled Mastic Sealant Tape, Duct AFG-1402P-3 AFG-1402P-3
$72.01
Shipping included
In Stock ICOOL 1/4" X 1/2" X 1/2" X 15' White PE Insulation Both Joined Line Set, Flared Nuts, Type B B141212015F
$165.67
Shipping included
In Stock ICOOL 1/4" X 1/2" X 1/2" X 25' White PE Insulation Both Joined Line Set, Flared Nuts, Type B B141212025F
$195.30
Shipping included
In Stock 
In Stock LIBERTY PUMPS LCU Series Condensate Pump With Tubing 115V LCU-15T LCU-15T · 115V
$138.51
Shipping included
In Stock LITTLE GIANT VCMA-15ULS Condensate Pump 1/50 HP 65 GPH 115 VAC 554405 554405
$121.54
Shipping included
In Stock LITTLE GIANT VCMA-15ULST Condensate Pump 1/50 HP 65 GPH 115 VAC 554415 554415
$140.05
Shipping included
In Stock LITTLE GIANT VCMA-Pro Series Condensate Pump 1/30 HP Motor 230 VAC 50/60 Hz 75 Watts 554631 554631
$165.55
Shipping included
In Stock 
In Stock 
In Stock RECTORSEAL Safe-T-Switch SS2 Gen3 Primary Drain Pan Auxiliary Outlet 97087 97087
$52.90
Shipping included
In Stock RECTORSEAL Safe-T-Switch SS3 Gen3 Primary & Auxiliary Drain Pans 97089 97089
$41.48
Shipping included
Installation supplies
The supplies that finish an install: galvanized drain pans, condensate pumps, sealants and mounting items from TradePro, Little Giant, Rectorseal, Liberty Pumps and more.
What to check
- Drain pans: check the pan size against your air handler or furnace footprint.
- Code: confirm local code requirements for secondary drain pans in attics.
Shipping and returns
Free shippingIncluded on orders to the continental US.
Fast dispatchParts ship by UPS or FedEx Ground in 1 to 2 business days.
Tampa pickupWill-call pickup at our Tampa warehouse, Monday to Friday.
30-day returnsUnused items in original packaging, within 30 days of delivery. Special-order items are final sale.
Not sure what fits?Call us with your model number, Monday to Friday, 8am to 5pm ET.