• Intake - Water is pumped into top inlet and dispersed by Trickle-Flow spray bar.
• Mechanical Filtration - Sponged debris removed by filter sponge pads.
• Bio-Filtration - Water trickles over the bio-rings that provide massive surface area for aerobic bacteria to thrive:
  Venturi inlet supplies oxygen for aerobic bacteria.
  The beneficial bacteria on the bio-rings convert ammonia into nitrites and the nitrates.
• Discharge and Nitrate Removed - Purified water is discharged out the bottom of filter to the pond. Nitrates can be removed from the pond by aquatic plants and/or partial water changes.

• Easy out-of-pond accessibility and simple maintenance.
• Mechanical pre-filter sponges-remove suspended debris to improve water clarity.
• Bio Ring media provide massive surface areas for beneficial aerobic bacteria to adhere to and multiply. Aerobic bacteria eat the ammonia toxins created by fish waste and decomposing plant materials.
• TetraPond internal spray systems and Trickle Flow technology disperses pond water slowly and evenly through the Bio Rings ensuring that there is sufficient oxygen to provide optimal biofiltration conditions.
• 1.25" drain fitting
• Interchangeable .75", 1" intake fittings
• Venturi inlet aerates water and thus enhances bio-activity

TetraPond New Pressurized Filters

• Heavy Duty construction - robust latches and seals
• Easy to bury and conceal
• Mechanical and biological filtration
• Back-Flush valve easy to use
• UV units and UV upgrade kits available

Replacement Parts

SKU	Description	Price	Order
16787	Tetra 1500 UV filter replacement bulb	31.95
16792	Tetra 2500/4000 UV filter replacement bulb	44.95
29582	Tetra 1500 UV filter Quartz tube	29.95
29583	Tetra 2500/4000 UV filter Quartz tube	45.95
16786	Tetra Pressure filter replacement filter pad	9.95