Interlock Filter Cartridge (Set of 2pcs)

Product Description

Interlock Filter Cartridge Set (2 Pieces) for Swim Spas and Large Spas

Keep your spa water crystal clear with this premium Interlock Filter Cartridge Set, comprising one upper and one lower cartridge designed to work together in stacked filtration systems. These replacement cartridges are commonly used in swim spas and large portable spas fitted with widemouth front-access skimmer housings. 

Manufactured using high-quality filtration media, these cartridges provide excellent dirt-holding capacity, improved water flow, and reliable filtration performance compared to low-grade generic replacements. 

Key Features

• Includes 2 interlocking filter cartridges (upper and lower).
• Designed for stacked filtration systems used in many swim spas.
• High-efficiency pleated media captures dirt, debris, oils, and fine particles.
• Durable end caps and reinforced core construction.
• Easy to clean and maintain.
• Helps improve water clarity and reduce strain on pumps and heaters.
• Premium replacement quality using trusted filtration media. 

Technical Specifications

Upper Cartridge

• Closed top with integrated handle.
• Smooth lower spigot connection.
• Diameter: approximately 145 to 150 mm.
• Height: approximately 210 to 225 mm. 

Lower Cartridge

• Open top design.
• Coarse ACME-style threaded bottom connection.
• Diameter: approximately 145 to 150 mm.
• Height: approximately 220 to 225 mm. 

Complete Set

• Configuration: Upper + Lower Interlocking Cartridge
• Filtration Style: Stacked Widemouth Front Access Filter
• Application: Swim spas, portable spas, hydrotherapy spas
• Quantity: 2 cartridges per set 

Common Part Numbers

• SS50T
• SS50B
• FC-SS50T
• FC-SS50B
• SG100
• RFIL15050M
• RFIL15050F
• AFILK25MFS
• MSG100-K
• Unicel 6CH-942 

Compatible With

Commonly suits selected models from:

• Sapphire Spas
• Signature Spas
• Spa Industries
• Bullfrog Spas
• Waterway Systems
• V-Stream Swim Spas
• Other swim spas using stacked interlock filter cartridges matching the dimensions and connection type shown. 

Important: Always verify dimensions, top and bottom configurations, and connection style before ordering, as similar-looking filters may vary between spa models.