Bullfrog® STIL™ Series Wellspring 281 Coreless Filter Cartridge 2-Pack (2018+) 10-00810
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Key Features & Benefits
Genuine Bullfrog® OEM Quality
Original Equipment Manufacturer (OEM) filter engineered specifically for Bullfrog STIL Series spas (2018+). Designed for exact fitment and factory-level compatibility, ensuring proper sealing, balanced circulation, and warranty-safe performance. Built to meet or exceed Bullfrog’s performance and durability standards.
Advanced Coreless Filtration Design
Engineered for seamless compatibility with original mounting points for secure placement.The innovative coreless structure maximizes usable filtration surface area while reducing internal restriction. This design improves water circulation, enhances chemical distribution, and supports more efficient contaminant removal compared to traditional cored filters.
Superior 10–15 Micron Filtration Performance
High-capacity pleated media captures fine particles down to 10–15 microns, helping maintain crystal-clear water even under heavy bather-load conditions. Efficient debris removal reduces strain on pumps and heaters while stabilizing water chemistry.
Optimized Water Flow & Circulation
Engineered to maintain proper hydraulic flow rates within your spa system. Balanced filtration ensures strong jet performance, consistent heating, and steady sanitizer effectiveness without flow restriction.
Convenient 2-Pack Rotation System
Includes two cartridges so you always have a clean filter ready. Rotating filters during cleaning extends overall lifespan, reduces maintenance downtime, and delivers better value compared to purchasing single filters individually.
Simple, Hassle-Free Maintenance
Tool-free drop-in installation makes replacement quick and straightforward. Fully compatible with standard spa filter cleaning solutions, and durable construction withstands repeated cleaning cycles. Following a clear rotation and cleaning schedule helps maintain optimal water quality year-round.
Product Overview
Unlike standard pleated filters, the coreless design maximizes filtration surface area while maintaining optimal water flow. Each filter in this convenient 2-pack is engineered to Bullfrog's exacting specifications, ensuring perfect compatibility with your Wellspring spa's filtration system.
Frequently Asked Questions
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Replace every 12-18 months depending on usage, or sooner if you notice decreased flow or water quality issues.
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Rinse every 2-4 weeks with a hose. Deep clean every 3-4 months by soaking overnight in filter cleaner solution.
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These are designed for 2018-present STIL models. Contact us to verify compatibility for older models.
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Genuine OEM filters meet exact Bullfrog specifications for fit, flow rate, and filtration—protecting your warranty and equipment.
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While possible, using both filters ensures optimal circulation and gives you a backup during cleaning cycles.
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Replace when you see persistent cloudiness, reduced jet pressure, visible damage, or permanent discoloration after cleaning.
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