We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Blue leak detector liquid in a 32 oz bottle

Hercules

Hercules 45802 leak detector liquid 32 oz blue air treatment

SKU CH-KF3J-BF9CB

Detects gas leaks with long-lasting blue bubbles that cling to vertical surfaces in a 32 oz liquid formula

  • TypeAir Conditioner Accessories
  • ColorBlue
  • Detects tiny gas leaks with long-lasting bubbles
  • Non-corrosive formula protects system components
  • Non-toxic liquid safe for handling
  • Clings to vertical surfaces for easy application

Leak Detector Liquid for HVAC Systems

Hercules 45802 is a blue, non-corrosive leak detector liquid supplied in a 32 oz container. It produces long-lasting bubbles that cling to vertical surfaces, helping technicians locate even the smallest gas leaks in air conditioning and refrigeration systems. The non-toxic formula is safe to handle during routine maintenance and installation work.

Ideal for HVAC Technicians and Installers

This product suits professionals who need a visible, bubble-based method for pinpointing refrigerant or gas escapes on piping, fittings and coils. It is not intended for electronic sensor-based detection, tracer-gas workflows or automated monitoring systems. Buyers requiring a digital leak detector, UV dye kit or a formula certified for oxygen service should look at alternative solutions.

Highlights

  • Detects tiny gas leaks with long-lasting bubbles
  • Non-corrosive formula protects system components
  • Non-toxic liquid safe for handling
  • Clings to vertical surfaces for easy application

Specifications

TypeAir Conditioner Accessories
BrandHercules
ColorBlue

Questions about this item

What type of gas system does this 45802 leak detector work with?

It is designed for air-conditioning systems and produces long-lasting bubbles that cling to vertical surfaces to reveal even the smallest gas leaks.

Can I use this blue liquid on older copper or steel fittings without damaging them?

Yes, the non-corrosive and non-toxic formula is safe for use on metal fittings and will not harm older components during leak testing.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.