Hot Spring SC712 Spa Filter – Compatible with Caldera, Freeflow, Tiger River

Hot Spring® SC712 – Premium Spa & Hot Tub Filter Cartridge

Compatible with Hot Spring®, Caldera®, Freeflow®, Endless Pools®, Tiger River® and more

The Hot Spring SC712 is a premium replacement spa filter designed to maintain clean, clear and hygienic water in a wide range of hot tubs. Manufactured to meet the high standards of Hot Spring® and Caldera® spas, this filter delivers excellent performance thanks to its durable, high-density pleated filtration media.

The SC712 efficiently captures debris, oils, fine particles, pollen and organic contaminants. This ensures crystal-clear water while protecting pumps, heaters and circulation components, extending the overall lifespan of your spa system.

Because of its universal dimensions, the SC712 is compatible with many popular hot tub brands—including the entire Watkins Wellness family—and replaces several well-known filter codes.

Compatible Brands & Hot Tub Models

The SC712 fits a wide range of spas, including:

✔ Hot Spring® Spas

(Aria, Grandee, Jetsetter, Sovereign, Vanguard and other models using this filter format)

✔ Caldera® Spas

✔ Freeflow® Spas (Watkins group)

✔ Endless Pools® (spa series)

✔ Tiger River® Spas

✔ Spaform®

✔ Other spas using identical dimensions:

• ~27 cm length
• ~15 cm diameter
• 5 cm open top & open bottom
• ~30 sq ft filtration area

Replacement Filter Codes

The SC712 replaces the following filters:

• Unicel C-6430

• Pleatco PWK30-4

• Darlly 60301

• Other identical 30 sq ft spa filters

Technical Specifications

• Length: approx. 26.7–27 cm

• Diameter: approx. 14.9–15.2 cm

• Top: 5 cm open hole

• Bottom: 5 cm open hole

• Filtration area: ~30 sq ft

• Material: high-density pleated polyester (Reemay® type)

• Washable and reusable

• High dirt-holding capacity

• Long-life construction

Key Benefits

• Premium filter designed for Hot Spring® & Caldera®

• Universal fit for many spa brands

• Ensures crystal-clear water & superior hygiene

• Captures oils, fine particles, organic debris

• Easy installation – simple drop-in design

• Protects pumps, heaters and spa components

• Suitable for both home and heavy-use spa systems

Maintenance Recommendations

• Rinse every 1–2 weeks

• Deep clean every 4 weeks

• Replace every 4–6 months, depending on use

• For best results: use two filters in rotation