Hot Tub Things® | Hot Tub Supplies – Filters, Parts, Chemicals & More!

From Winter Frost to Spring Glow

Spring Spa Refresh

Grab everything you need for your annual deep clean—from pipe flushes to brand-new pillows.

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Top-rated filters, pillows, water care, and accessories trusted by spa owners for performance, comfort, and long-lasting quality.

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FILTER MATRIX

Enter your spa details and get the exact filter that fits—instantly.
A simple tool that matches your hot tub to the correct filter cartridge.

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Shop the top hot tub essentials trusted for comfort and water care—your shortcut to a premium spa experience.

303® Mold & Mildew Cleaner + Blocker – 16 fl oz – part #30573

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Cleaner

303® Mold & Mildew Cleaner + Blocker – 16 fl oz – part #30573

$12.79

Leisure Time® Bright & Clear® (All Spa Types) – Hot Tub Water Clarifier – 1 pt

new

Clarifier

Leisure Time® Bright & Clear® (All Spa Types) – Hot Tub Water Clarifier – 1 pt

$16.95

Leisure Time® Metal Gon® (16 fl oz) – Spa Metal & Stain Prevention

new

Clarifier

Leisure Time® Metal Gon® (16 fl oz) – Spa Metal & Stain Prevention

$13.95

Hot Tub Things® 880 Inner Filter (2024+) – Replaces Sundance® 6473‑453S

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Filter

Hot Tub Things® 880 Inner Filter (2024+) – Replaces Sundance® 6473‑453S

$39.99

Leisure Time® Renew® Granular (2.2 lb) – Non-Chlorine Shock Oxidizer

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Shock

Leisure Time® Renew® Granular (2.2 lb) – Non-Chlorine Shock Oxidizer

$23.95

TEAR-AID® Fabric Repair Kit – Type A (Clear Adhesive Patches)

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Cover Maintenance

TEAR-AID® Fabric Repair Kit – Type A (Clear Adhesive Patches)

$12.95

4 oz Measuring Cup – Easy-Pour Spout, Accurate Chemical Dosing

new

Cleaning Supplies

4 oz Measuring Cup – Easy-Pour Spout, Accurate Chemical Dosing

$1.58

Premium Spa Cover Cap 89″×89″×12″ — Medium Hot Tub Lid Protector

Best Sellernew

Cover Maintenance

Premium Spa Cover Cap 89″×89″×12″ — Medium Hot Tub Lid Protector

$119.99

Premium Spa Cover Cap 96″×96″×12″ (Large)

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Cover Maintenance

Premium Spa Cover Cap 96″×96″×12″ (Large)

$131.99

TEAR‑AID® Repair Patch: Fabric Type B (Underwater)

Best Sellernew

Cover Maintenance

TEAR‑AID® Repair Patch: Fabric Type B (Underwater)

$9.95

FROG® DropH™ pH & Total Alkalinity Decreaser (3 lb)

new

Balancer

FROG® DropH™ pH & Total Alkalinity Decreaser (3 lb)

$15.95

FROG® Target™ Total Alkalinity Increaser

new

Balancer

FROG® Target™ Total Alkalinity Increaser

$14.95

Filters, Adapters & Cartridges

Replacement spa filters and cartridges designed to improve water clarity, circulation, and overall performance.

Pillows, Headrests & Comfort Accessories

Premium hot tub pillows, ergonomic headrests, and precision-fit snapcaps designed to elevate comfort, support, and relaxation in every soak.

Spring Spa Refresh

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Pillows, Headrests & Comfort Accessories

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