Don't replace the bag—simply refill it.
The Drain Therapy® Refill 3-Pack includes three 16 oz bottles of our professional-strength condensate drain treatment. Together, the three bottles provide the proper amount of solution to completely refill one Drain Therapy reservoir, keeping your HVAC drain line protected for another 6 months.
Our slow-release formula continuously helps reduce slime, algae, biofilm, mold, and other buildup that can lead to clogged condensate drains, water damage, and expensive service calls.
3 × 16 oz (473 mL) bottles
Refills 1 Drain Therapy Bag
Total Solution: 48 oz (1.42 L)
Helps prevent clogged condensate drain lines
Helps reduce algae, slime, and biofilm buildup
Helps prevent costly water damage from drain overflows
Helps reduce mold and mildew growth inside drain lines
Easy to pour and refill
Professional-strength HVAC drain treatment
Safe for PVC condensate drain piping when used as directed
Remove the Drain Therapy bag from its mounting bracket.
Open the fill cap.
Pour all three 16 oz bottles into the reservoir.
Replace the cap and reinstall the bag.
Enjoy continuous drain line protection for up to 6 months.
Homeowners
HVAC maintenance agreements
Property managers
Commercial buildings
Apartments and condominiums
Vacation rental properties
Unlike single refill bottles, the Drain Therapy Refill 3-Pack contains the exact amount of solution needed to completely recharge one Drain Therapy bag. No measuring, no guessing, and no leftover product—just refill, reinstall, and let Drain Therapy keep your condensate drain flowing freely.
One 3-Pack. One Complete Refill. Up to 6 Months of Protection.
Don't replace the bag—simply refill it.
The Drain Therapy® Refill 3-Pack includes three 16 oz bottles of our professional-strength condensate drain treatment. Together, the three bottles provide the proper amount of solution to completely refill one Drain Therapy reservoir, keeping your HVAC drain line protected for another 6 months.
Our slow-release formula continuously helps reduce slime, algae, biofilm, mold, and other buildup that can lead to clogged condensate drains, water damage, and expensive service calls.
3 × 16 oz (473 mL) bottles
Refills 1 Drain Therapy Bag
Total Solution: 48 oz (1.42 L)
Helps prevent clogged condensate drain lines
Helps reduce algae, slime, and biofilm buildup
Helps prevent costly water damage from drain overflows
Helps reduce mold and mildew growth inside drain lines
Easy to pour and refill
Professional-strength HVAC drain treatment
Safe for PVC condensate drain piping when used as directed
Remove the Drain Therapy bag from its mounting bracket.
Open the fill cap.
Pour all three 16 oz bottles into the reservoir.
Replace the cap and reinstall the bag.
Enjoy continuous drain line protection for up to 6 months.
Homeowners
HVAC maintenance agreements
Property managers
Commercial buildings
Apartments and condominiums
Vacation rental properties
Unlike single refill bottles, the Drain Therapy Refill 3-Pack contains the exact amount of solution needed to completely recharge one Drain Therapy bag. No measuring, no guessing, and no leftover product—just refill, reinstall, and let Drain Therapy keep your condensate drain flowing freely.
One 3-Pack. One Complete Refill. Up to 6 Months of Protection.