All Professional Filters

GCTek is dedicated to bringing you the highest quality filters at the lowest cost - backed with a lifetime warranty on the tank. Multiport valves are carefully chosen to give maximum flows for the least energy dollars. Rest assured, quality was the main consideration when your filter was designed and assembled.

These Complete Systems are mounted on an all weather pad, pre-plumbed and ready to install. Nothing could be easier or better.

• Filter w/ Media Agitator
• External Pump
• UV Clarifier
• Plumbing assembly
• All Weather Pad

Designed by Aqua Ultraviolet

• Very High Flow Rate.
• No Channeling.
• Only Minutes To Backwash
• Great For Heavy Fish Loads
• Media Will NOT Clump Together
• Compact Filter Can Be Buried
• Works With Low-Amp, High Flow Pumps

This is the next generation of filters and one of the best tools for Koi ponds. The Ultima II is specifically engineered to meet the environmental demands of koi ponds.The lightweight media is designed for very high flow rates. There is a patent pending on this tubular media which has low head loss and a very high biofilm surface. The "Y" shape on the inside and wings on the outside affords a protective surface under back washing and our patent pending backwash system will keep the media from clogging. The same properties have been added to this media in three different sizes with random lengths and diameters to avoid stacking. One cubic foot of Ultima II biological filter media is equal to 750 square feet of surface area. Cleaning the filter is done by internal jets.

Specifically designed for use with water gardens, koi ponds and hybrid ponds, EasyPro pressurized bead filters offer superior mechanical and biological filtration for clean, clear water. Beneficial bacteria colonize on the surface of the Ultimate Tube Media used in these filters. Beneficial bacteria help break down fish toxic ammonia and create a healthier environment for aquatic life. A properly sized and installed filter will provide excellent water quality for maximum pond enjoyment!

Mechanical and biological filtration for water gardens, koi ponds, hybrid ponds and fish systems

• Strong, heavy duty, polyethylene filter body
• Simple to set up and assemble
• Easy back flush – uses six position control head
• Includes Ultimate Tube Media
• Minimal back pressure – high flow rate media creates very little back pressure
• 1 1/2″ - 2" inlet/outlet lines with unions included

Optional Upgrade - Air Blower:
• Using a blower to agitate the media inside the filter prior to backflush will greatly speed up the cleaning process
• It also reduces water loss during the backflush and helps prevent beads from clumping together

Advanced filtration systems for Koi ponds now with NEW K+ Media

Building on the tried and tested technology that has been present in the world renowned Nexus, the team at Evolution Aqua have gone even further to enhance their number one koi pond filter. 

The Nexus 220+ and Nexus 320+ filters now come with a new filter media called K+ Media in the moving bed outer chamber for vastly improved biological filtration and faster filter maturation. The new Nexus+ filters are now supplied "auto ready", with factory fitted fixings already in place, making it even easier to upgrade to the Nexus Automatic Cleaning System.

How the Nexus Works

Water from the pond enters the nexus via the inlet into the inner chamber which works as a vortex, allowing larger solids to settle out. Water then passes through the grills in the stainless steel “Eazy” filter, where the finer particles are removed by the static bed K1 Micro® filter media. The clean water then passes to the outside chamber of the Nexus for biological treatment before returning to the pond. At this stage, biological breakdown occurs through different strains of bacteria and filter feeders living on the protected surface area of each K1+ Media filer. The bacteria convert Ammonia and Nitrite into less harmful Nitrate. Water then passes through the exit grill into the outlet and returns to the pond.

Continuing our long standing reputation for innovation, the Nexus Automatic System now enables Nexus owners to benefit from a fully automated cleaning cycle

Physically turning ball valves and manually switching pumps on and off will now be a thing of the past thanks to the Nexus Automatic System. All of the key processes that form the cleaning cycle are now controlled automatically with this easy to install kit.

Key Features
• Hassle free way to clean Nexus filtration systems
• Automates the cleaning process of the Nexus
• Easily fits onto Nexus filters (post 2006 models)
• Electronic control box automatically operates valves and pumps
• Adjustable timer controls the frequency of the automatic cleaning cycle to suit the user’s needs
• Easy to set up for multiple cleaning cycles
• Manual cleaning cycle can be carried out if needed, at the touch of a button
• GRAVITY and PUMP FED versions available

Evolution Aqua have re-designed the K1 Microbead Filters for 2017 to offer new and improved performance.

These game changing filtration systems completely re-invent the way we think about bead filters. Rather than using conventional beads as their principle filter media, our filters use K1 Micro.

K1 Microbead Filters offers a whole range of benefits over beads including:
• improved biological filtration
• better mechanical filtration
• improved flow
• reduced back pressure on pumps
• increased protected surface area
• improved internal design
• re-designed internal pipework

A compact member of the Nexus family, the EazyPod is a mechanical and biological filter system for garden ponds up to 5,333 gallons or Koi ponds up to 2,640 gallons. The EazyPod utilises static K1 Micro, which provides enhanced biological benefits, even when using the EazyPod solely as a mechanical waste filter.

• Mechanical and biological filtration.
• Very eazy to install and operate.
• Quick and eazy cleaning cycle.
• Works equally well pump or gravity fed.
• Ideal as a filter on a quarantine system.
• Also ideal for use as a pre-filter, polisher or on a skimmer line.

The EazyPod Automatic is a self-cleaning, mechanical and biological filter system for ponds up to 2,640 gallons.

The integrated control box contains an adjustable timer which initiates a cleaning cycle automatically - meaning your filter will clean itself even when you’re not there! Inside the control box, the electronic connector blocks control the automated waste valve, along with your choice of circulating pump (not supplied). It even houses an integral air pump which kicks in automatically to clean the K1 Micro media.

Crystal clear, healthy water is achieved by K1 Micro filter media, which also provides enhanced biological benefits by way of its protected surface area.

The Eazypod UV Automatic features an integrated 18 Watt UVC built in to the inlet section of the filter, helping to clear green water. Available in 2 models, users can select either the EazyPod Automatic or the EazyPod UV Automatic (with built-in 18 watt UV). 

Advanced Pressurized Filters with K+ Media

These game changing filtration systems completely re-invent the way we think about bead filters. Rather than using conventional beads as their principle filter media, these filters use K+ Media. This advanced media, with it's innovative structure, is molded with minerals for faster beneficial bacteria development and improved bio-film. K+ Media also has much larger protected surface area than any other Evolution Aqua media.

• Class leading total surface and protected area
• Exceptional solids removal thanks to efficient design
• Minerals added during manufacturing provide faster maturation times
• Reduced energy consumption, less back pressure on pumps
• Multi-port valve and blower included and large viewing lid

Oase ProfiClear Premium is a fully automatic filter system that offers hands-free operation. Pump-fed, flow-through drum filter utilizes a rotating screen to provide effective cleaning and polishing of water. Drum is fully self-cleaning with a built-in high-pressure cleaning pump. Moving Bed System with 40 liters of Hel-X Bio-media provides optimal biological filtration. Can be buried up to UVC mounts for maximum versatility. Integrated linear air stones provide extra oxygen in the module with included connection kit for AquaOxy 450.

• Dual inlets accomodate optional Bitron C UV Clarifier
• Secondary inlet accomodates 2" pipe for non-UV installations
• Micro control system offers a choice of manual or time interval cleaning, or full automatic cleaning via sensor
  
• Drain with integrated slide valve clears sludge as needed
• Drum filter with removable 80 micro sieve
• Spray bar removes fine particles from micro sieve
• Dirty water discharge 4" outlet
• Fully control your ProfiClear with the Easy Garden Control (EGC) system