Check Compatibility Before You Buy
Hot Tub Things® 281 AntiMicrobial STIL Series Filter 2-Pack – Compatible with Bullfrog® 10-00810
The 281 AntiMicrobial Filter is a high-performance replacement cartridge specifically designed for Bullfrog® STIL Series hot tubs. Unlike standard filters, this advanced filtration system incorporates Microban® antimicrobial protection directly into the filter media, creating an inhospitable environment for bacteria and microorganisms. The result? Cleaner water, reduced maintenance, and a healthier spa environment for you and your family.
This convenient 2-pack ensures you always have a spare filter on hand, allowing you to rotate filters during cleaning for uninterrupted spa enjoyment.
Microban® Antimicrobial Technology
- Built-in protection against bacteria, mold, and mildew
- Inhibits microbial growth on the filter surface
- Reduces biofilm formation
- Keeps filters fresher between cleanings
- EPA-registered antimicrobial protection
Superior Filtration Performance
- High-efficiency pleated design
- Captures particles as small as 10-15 microns
- Maximum surface area for optimal water flow
- Maintains consistent filtration throughout filter life
- Crystal-clear water quality
Perfect Fit for Bullfrog® STIL Series
- Exact OEM specifications
- Drop-in replacement—no modifications needed
- Guaranteed compatibility with STIL models
- Proper seal prevents bypass
- Engineered for Bullfrog's unique filtration system
Long-Lasting Durability
- Premium polyester filter media
- Reinforced core construction
- Resistant to chemicals and UV degradation
- 12-18 month lifespan with proper maintenance
- Cost-effective 2-pack value
Convenient 2-Pack
- Always have a spare filter ready
- Rotate filters during cleaning cycles
- Never run your spa without filtration
- Better value than single filters
- Reduces maintenance downtime
Frequently Asked Questions
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Rinse every 2–4 weeks; deep clean monthly; expect 3–6 months of service depending on usage.
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Replace Bullfrog filters every 12-18 months depending on usage frequency. Clean filters weekly with a hose rinse and deep clean monthly with filter cleaner to maximize lifespan.
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Yes, antimicrobial filters with Microban® technology inhibit bacterial growth, reduce odors, stay cleaner longer, and improve water quality. They're especially beneficial for heavily-used spas or those in warm climates.
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Never run your spa without a filter. Doing so allows debris and contaminants to circulate freely, potentially damaging your pump, heater, and jets while creating unsafe water conditions. Always have a spare filter available.
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Rinse weekly with a garden hose or filter wand. Monthly, soak the filter overnight in Hot Tub Things® Cartridge Cleaner, rinse thoroughly, and allow to dry before reinstalling. Rotate with your spare filter during cleaning.
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Cloudy water with a new filter typically indicates water chemistry imbalance, not a filter issue. Test and balance pH, alkalinity, and sanitizer levels. If problems persist, check for high TDS (total dissolved solids) or inadequate filtration time.
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The 281 filter has identical openings on both ends (2-1/8 inches), so there's no specific top or bottom. However, rotating the filter 180 degrees during reinstallation can promote even wear.
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