Why You’ll Love It
Through layers of water purification, the hygger 137 HOB filter’s biochemical sponge and high-density microporous cotton filter remove large and small impurities in tanks, purify and cultivate beneficial bacteria to break down harmful substances. It’s activated carbon that removes odor from the water.
Key Features
Professional-Grade Filtration Technology
This HG137 bilateral HOB filter features dual cartridges for comprehensive 6-stage filtration:
① Mechanical filtration (biochemical sponge traps large debris)
② Fine filtration (micro-mesh cotton catches tiny particles)
③ Chemical filtration (activated carbon removes odors/discoloration)
④ Biological filtration (cultivates beneficial bacteria)
⑤ Water circulation (improves tank oxygenation)
⑥ Surface skimming (removes protein film)
Note: The HG137 Aquarium Replacement Filter Cartridges have 4-stage filtration: thickened micro-mesh cotton – activated carbon – zeolite – thickened micro-mesh cotton.
Dual Function Benefits
– Water Purification – Effectively removes ammonia, nitrates, and impurities
– Oxygen Enrichment – Waterfall design increases dissolved oxygen levels
– Current Creation – Promotes healthy water movement for fish vitality
Whisper-Quiet Operation
– Advanced motor design operates at <30 dB
– Adjustable flow rate (132GPH-264GPH models available)
– Smooth waterfall outlet creates peaceful water sounds
– Energy efficient (5W-10W consumption)
Universal Compatibility
– Fits glass/acrylic tanks up to 1.1″ thick
– Works for freshwater and saltwater setups
– Includes all necessary installation hardware
– Easy-to-replace filter media system
Usage Tips
1. Always prime the filter by filling it with water before startup
2. Ensure the water level covers the intake tube completely
3. Use a rubber strut to maintain the proper vertical position
4. Replace cartridges monthly, clean intake sponge bi-weekly
5. Customize the flow rate to match your tank’s needs
Specification
5W Model (132 GPH)
Ideal for small tanks: 10–30 gallons
Delivers a gentle flow rate of 132 gallons per hour
Compact size: 6.5″ L × 5.2″ W × 7.3″ H
Comes with 4 filter cartridges (includes 2 spares)
Offers 2 tube size options: 7.5″ and 9.8″
10W Model (264 GPH)
Suitable for medium tanks: 30–70 gallons
Provides a stronger flow: 264 gallons per hour
Larger size: 13.6″ L × 5.9″ W × 7.3″ H
Includes 8 filter cartridges (includes 4 spares)
Offers 4 tube size options: from 9.2″ to 17.7″
Package:
For 5W 132GPH Model:
• Filter unit ×1
• Filter cartridges ×4 (2 installed + 2 spare)
• Extension tube ×1
For 10W 264GPH Model:
• Filter unit ×1
• Filter cartridges ×8 (4 installed + 4 spare)
• Extension tubes ×2
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Works beautifully
Quiet, easy to set up, adjustable flow rate and depth of intake tubing. Comes with filter pads and back up pads.
this filter is better than my tidal 55. the water goes back in the aquarium without leaking on the top, thanks for making such a great product, Tim Watts
Fits perfectly looking forward to using it
The hang-on-back (HOB) filter is user-friendly and suitable for my smaller setup, it not only improves water quality but also enhances the overall stability of my aquarium ecosystem.