6540-501S Sundance 780 FILTER 75 SQFT Outer Pre 2026 chelsee,hamilton,bristol,montclair,dover

Genuine Sundance® Spas MicroClean® outer cartridge (part #6540-501S), a 75 sq ft outer filter for pre-2026 780-series and SELECT-series spas. Pairs with the inner micro filter for two-stage filtration.

Compatible Sundance® Spas models:

• 780™ Series — 2002–2025 (pre-2026): Chelsee™, Hamilton™, Bristol™, Montclair™, Dover™, Bahia™, Cayman™, Palermo™, Metro™, Caprio™, CaprioST™, Tango™
• SELECT™ Series — 2011–2018: Constance™, Victoria™

Filter system & related parts:

• Pairs with inner micro filter 6540-502S (sold separately)
• Alternate one-piece pleated filter: 6540-488S (125 sq ft)

Specifications:

• Outside Diameter: 8 7/16 to 8 1/2 in
• Length: 14 in
• Top End Cap: Closed, SAE threads
• Bottom End Cap: Open, 2 1/2 in beveled hole
• Filter Area: 75 sq ft