The Drain Valves & Hoses category includes the essential components used to drain, flush, test and service HVAC condensate systems. Whether you’re installing a new air handler, replacing condensate tubing or adding cleanouts to reduce callbacks, the right valve and hose setup keeps drainage reliable and compliant with residential and light-commercial code requirements.
This category includes drain valves, service flush valves, flexible condensate hoses, barb-end tubing, trap-drain hoses, pump discharge hoses, high-temperature hoses, and multi-use flexible drain lines. These components are compatible with common HVAC outlet sizes—3/8", 1/2", 5/8", 3/4"—and designed for air handlers, mini-split trays, roof-drain pans, condensate pumps and secondary overflow protection. Proper drainage prevents standing water, algae buildup, mold growth and potential ceiling or equipment damage.
When selecting drain valves and hoses, consider hose diameter, material type (vinyl, PVC, rubber), temperature exposure, length, routing path and compatibility with fittings and traps. Long horizontal runs should be fully supported to maintain proper slope. For high-humidity markets, choose algae-resistant or antimicrobial materials to reduce buildup inside the hose.
Pro tip: Add a cleanout or flush valve near the air handler and use flexible hoses for the final few feet of routing to reduce vibration, simplify service and prevent cracks in rigid piping.
HVAC drain valves and hoses include flexible condensate hoses, pump discharge hoses, service valves, flush valves and drain line accessories in sizes 3/8 to 3/4 inch. Used on air handlers, mini-splits, heat pumps and condensate pumps.
