Hot Tub Serum®

We are proud to add top-rated Hot Tub Serum to our line-up

This popular, easy-to-use, high-performance maintenance system is designed to keep water clean and boost sanitizer efficiency in hot tubs and swim spas — all while using less chemicals.

This best-seller works with all sanitizers, including chlorine, bromine, salt and biguanide.

Order Before Sept. 30, 2026 and Get 50% off

Plus Take Delivery Until Sept. 30, 2027

Ready to Order?

Submit PO to Customer Service via customer.service@kingtechnology.com. PO must include:

  1. Business name and shipping address (include email and phone number)
  2. Part number and quantity (product will ship in cases)
  3. Preferred Ship Date
  4. Free freight on orders exceeding $1500

Learn More About Our 3 Hot Tub Serum Solutions:

Hot Tub Serum Total Cleanse — Flushes the Plumbing

Concentrated gel designed to purge hot tub plumbing and jets of built-up contaminants, sludge and gunk prior to draining. Use every 4-6 months.

SRM16-2oz Total Cleanse Hot Tub SERUM Bottle Jar Image 300x300
SRM16-16oz Hot Tub SERUM Bottle Both Sizes Image 1 300x300

Hot Tub Serum Total Maintenance — Prevents Future Build-Up

Weekly treatment designed to remove contaminants and keep sludge out of the hot tub plumbing to help clarify water. Weekly use.

Hot Tub Serum Triple Action Spray Cleaner

Cleans above the waterline, prevents musty odors and stops grime build-up on surfaces including covers, pillows, steps and outer cabinet. Fast-acting.

Hot Tub Serum Spray Cleaner 300x300

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