Provides a direct replacement for the OEM Sundance® MicroClean® Ultra inner filter—densely spun-bound polyester microfiber media captures ultra-fine particles and preserves spa clarity. Compatible with Sundance® 880 Series (2009–2023) and 850 Series (2005–2023), including Altamar, Capri, Cameo, Majesta, Marin, Maxxus, Optima, Aspen, Claremont, and Lisbon models. Fully fits original part #6473‑164S—aka AK‑6473164 or SD‑01293—in Dual‑Stage MicroClean® Ultra setups; outer filter sold separately. Dimensions are approximately 18.74″ length × 5.63″ diameter, with open 2.75″ top and bottom holes for precise installation. Non-washable; replace every 3–6 months based on usage to maintain optimal water clarity and avoid strain on spa components. Quick, tool-free installation—remove existing inner filter, insert fresh one, and replace the compatible outer filter for full performance restoration.

Direct replacement for the Sundance® Disposable MicroClean® upper cartridge (OEM 6540-502S), crafted with microfiber media to absorb oils, lotions, and ultra-fine debris that bypass pleated filters. Compatible with Sundance® Spas from 2002–2024, including models like Tango, Caprio, Metro, Bahia, Dover, Montclair, Chelsee, Victoria, Constance, Bristol, and more. Compact “top-hat” design (7.64″ × 7.68″ × 5.08″) fits securely inside the outer filter (6540-501S) in dual-stage MicroClean® systems. Non-washable; replace every 3–4 months or after draining to maintain water clarity and chemical efficiency. Fully compatible with all sanitizer types—chlorine, bromine, UV, and mineral. Lightweight (~0.71 lb) and budget-friendly while providing OEM-level filtration performance.

High-quality Hot Tub Things® flat filter 4-pack, compatible with Bullfrog® Simplicity® Series spas Direct replacement for OEM filter part #10‑00814 used in 2018 and newer Simplicity® models Coreless design improves water flow and efficiency while simplifying filter changes Engineered from durable pleated media that captures fine particles and debris Designed for quick installation—no adapters or tools required Replaces factory-installed filters for reliable water clarity and hassle-free maintenance Includes 4 flat cartridge filters—a convenient bulk pack for seasonal replacement Not compatible with Bullfrog STIL, M, A, or X Series spas

Premium washable outer filter cartridge crafted for Sundance® MicroClean® Ultra systems, matching OEM part #6473‑165S in design and performance. Compatible with Sundance® 850 Series (2005–2023) and 880 Series (2009–2023), including Altamar, Cameo, Capri, Majesta, Marin, Maxxus, Optima, Claremont, and Kingston models. Made from durable spunbonded polyester media that resists fraying and shedding under spa heat and chemical exposure. Core of a dual-stage filtration system—captures larger debris and protects the inner filter—extending its lifespan and maintaining water clarity. Fully reusable; just rinse monthly to restore performance and reduce filter replacement costs. OEM-matching dimensions: approximately 19.8″ length × 8.42″ diameter, with a 2.5″ hole, and offers about 130 sq. ft. of pleated surface area.

Premium replacement for the Jacuzzi® ProClear® 60 sq ft HydroFilter, featuring a convenient twist‑off cap to accommodate ProClear® mineral cartridges while filtering. Compatible with single‑filter systems used in J‑300™ (2002+), J‑400™ (2013+), J‑500™ (2015+), and J‑LX®/L‑XL® (2011–2019 & 2023+) series spas. Crafted with high‑capacity woven Reemay® media, this filter efficiently removes oils, pollen, and fine debris for exceptionally clear spa water. Built to precise OEM specs: 15.45 ″ tall, 6.697 ″ diameter, with a 2.375 ″ SAE‑threaded bottom port for a seamless fit Δ Reusable and user‑friendly—just rinse or soak monthly to refresh performance; typical lifespan is 12–18 months depending on spa usage. A cost‑effective alternative that delivers authentic Jacuzzi® filtration quality without compromising performance.

Premium replacement for Sundance® MicroClean® lower (outer) cartridge, compatible with OEM part 6540‑501S Offers 75 sq ft filtration area using spunbound polyester media to capture fine debris for cleaner water Dimensions match OEM: 8.5″ diameter × 14″ length, closed-top SAE threaded cap, open beveled 2.5″ bottom Durable, washable design—rinse monthly to maintain performance, lasts multiple seasons Compatible with OEM and aftermarket upper microfilter systems (e.g., 6540‑502, 6473‑165) in dual-stage setups OEM cross-references: Unicel C-8380, Filbur FC-2810, Pleatco PSD85-2002, APCC7357, 18007, 80801 Easy tool-free install—slide in, restore water, and enjoy spa clarity

High-capacity outer filter cartridge, compatible with Sundance 6540‑488S (125 sq ft) and cross-references like Unicel C‑8326, Filbur FC‑2780, Pleatco PSD125‑2000 Designed for Sundance spa models (2003–2024), including Bahia, Capri, Cameo, Majesta, Marin, Maxxus, Optima, Dover, Montclair, Chelsee, etc. Made of sturdy pleated spunbond polyester media that captures particles down to ~10 microns without shedding Dimensions matching OEM: 8.5" diameter × 19" length, open beveled bottom hole ~2.5", closed-step top Washable and reusable—rinse monthly; durable enough for a full season of spa use Compatible with all sanitizers—chlorine, bromine, UV, and mineral systems Simple tool-free installation: pull old filter and insert HTT‑6540‑488S for immediate upgrade

Compatible replacement for Sundance® part #6473‑452S used in 2024+ 880 Series models Designed to function as the outer filter in Sundance® MicroClean® Ultra filtration systems High-efficiency pleated design captures large particles, hair, and debris before reaching the inner filter Built with durable, chemical-resistant materials that stand up to hot tub sanitizers and high flow rates Supports optimized filtration when paired with the matching disposable inner filter (sold separately) Easy to install and remove—no tools required, fits securely in 880 Series filter wells Helps improve overall water clarity and extend the life of your spa’s internal components Ideal for regular replacement every 3–6 months depending on spa usage and water quality

Designed as a direct replacement for Bullfrog® STIL Series coreless filters (Part #10‑00810), optimized for Wellspring™ filtration systems on 2018+ spas. Made with Microban® antimicrobial technology, this filter inhibits bacteria and mold, helping to minimize unpleasant odors and reduce cleaning frequency. Features a coreless pleated design that maximizes filtration surface area while improving water flow, and eliminates the need for rigid internal cores. Constructed from durable media capable of capturing fine debris, oils, and contaminants, ensuring cleaner, clearer spa water. A washable and reusable cartridge—simply rinse every 2–4 weeks and deep-clean monthly to prolong filter life and performance. Easy to install—drop-in design, no adapters or tools required. Includes two cartridges per pack for both filter positions. Cost-effective and eco-conscious, this replacement preserves spa efficiency while reducing plastic waste.