RK2 Systems
Creating Quality Water
9AM - 5PM (EST)
RK Ponds on Facebook

RK2 Systems Mechanical/Polishing Filters

Effective Solids Capture with our PMF Pond Filtration Systems

PMF-10, PMF-5

PMF-10, PMF-5

Filter Construction

Our 18" thru 24" diameter PMF Thermoplastic Series incorporate the latest advances in thermoplastic technology featuring a polymer mix that is abrasion proof for long lasting performance and durable protection against the elements.


For larger volume applications, we offer our commercial grade 24" thru 48" diameter PMF Fiberglass Series. All Fiberglass bodies are manufactured from the highest grade of non-corrosive materials and employ the latest in fiberglass winding technology. We guarantee these filters will outlast traditional pond filtration systems and will offer owners many years of trouble free operation. Our deep bed filters are the key to our success. Within each PMF Filter, our deep media bed improves the filtration efficiency over standard high-rate filters by providing enhanced in-depth filtration and increased dirt capacity.

The filter's 19" to 39" media bed ensures that finer dirt particles and colloidal substances are retained to a far greater level than a filter with a shallower bed depth.


Media Options

Glass Bead Media

Glass Bead Media

Superior Filter Media

Manufactured from pure glass, Glass Bead Media are a new generation of filter media, capable of providing water of superior clarity. Its spherical shape results in low coefficient of friction, reducing backwash requirements, saving pond owners both time and water.

Superior Clarity

Glass Bead Media have a small effective size of only 0.6mm to 0.8mm. Its narrow particle size range allows in-depth filtration and extends operating cycles between backwashing. Glass Bead Media have been laboratory tested to be able to effectively filter down to below 3 microns.

Save Water

Glass Bead Media's spherical smooth shape, results in a low coefficient of friction, reducing its backwash water requirements. Glass Bead Media backwashes with up to 20% less water than sand, saving time and water.

High Purity

Glass Bead Media are manufactured from pure glass and chemically inert. Glass Bead Media have been independently lab tested for leeching contaminants and found to be well within Australian Drinking Water Guidelines.

Safe and Smooth

Glass Bead Media are spherical and do not have any sharp edges. They are safe to handle and safe to service. If there is ever a failure of the filter's laterals and Glass Bead Media flow into the pond they pose no risk of injury to fish.

Time Saving

Glass Bead Media are easy to install and enables a rapid start up of the media filter. Its high purity means very little backwashing is required to cleanse the filter media, prior to commissioning the filter.

Chemical Compositions
Silicon Dioxide (SiO2) 70 - 75%
Sodium Oxide (Na2O) 12 - 15%
Calcium Oxide (CaO) 7 - 12%
Magnesium Oxide (MgO) approximately 5%
Aluminum Oxide (AL2O3) approximately 2.5%
Potassium Oxide (K2O) approximately 1.5%
Technical Specifications
Filtration Media Glass Pearl
Effective Size (mm) 0.61
Uniformity Coefficient 1.21
Bulk Density 1.61
Mohs Hardness 7.0
Part Number Size
5900 (1) 44lb. bag

When using our Glass Bead Media inside our PMF Filters, RK2 Systems strongly recommends using one of our Multicyclone Filters to help reduce the frequency and duration of backwashing your filtration system. (PMF Filter Specifications above).

Model Chart

Model No. Description Pond Size Suggested/Maximum 15 PSI/35 Ft. Hd.
Max. Water Flow
Glass Bead Media Amount Filter Dimensions
In/Out Port Matching UV Model/Watt Matching Multicyclone Filter Filter Material
5000 PMF-13 Top-Mount 2,100/4,200 U.S. Gallons 2,100/35 94# 16" x 31" 1½" 025050/50 watt RK-MC-12 Thermoplastic
5010 PMF-14 Top-Mount 2,600/5,200 U.S. Gallons 2,600/43 176# 18" x 33" 1½" 025080/80 watt RK-MC-12 Thermoplastic
5020 PMF-15 Top-Mount 3,300/6,600 U.S. Gallons 3,300/55 204# 20" x 32" 1½" 025080/80 watt RK-MC-12 Thermoplastic
5030 PMF-16 Top-Mount 4,800/9,600 U.S. Gallons 4,800/80 308# 24" x 33" 1½" 025150/150 watt RK-MC-16 Thermoplastic
5040 PMF-17 Top-Mount 3,700/7,400 U.S. Gallons 3,700/62 374# 24" x 38" 1½" 025120/120 watt RK-MC-16 Fiberglass
5050 PMF-18 Top-Mount 6,000/12,000 U.S. Gallons 6,000/100 605# 30" x 45" 2" 0250240/240 watt RK-MC-16 Fiberglass
5060 PMF-19 Top-Mount 8,400/16,800 U.S. Gallons 8,400/140 1100# 36" x 49" 2" 0250300/300 watt RK-MC-16 Fiberglass
5070 PMF-20 Side-Mount 3,700/7,400 U.S. Gallons 3,700/62 352# 24" x 33" 2" 025120/120 watt RK-MC-12 Fiberglass
5080 PMF-21 Side-Mount 6,000/12,000 U.S. Gallons 6,000/100 550# 30" x 37" 2" 0250240/240 watt RK-MC-16 Fiberglass
5090 PMF-22 Side-Mount 8,400/16,800 U.S. Gallons 8,400/140 880# 36" x 41" 2" 0250300/300 watt RK-MC-16 Fiberglass
5100 PMF-23 Side-Mount 15,000/30,000 U.S. Gallons 15,000/250 990# 42" x 50" 3" CUP6450HO/450 watt Please call Fiberglass
5110 PMF-24 Side-Mount 18,000/36,000 U.S. Gallons 18,000/300 2310# 48" x 54" 3" CUP6450HO/450 watt Please call Fiberglass
Valid HTML5Valid CSS3RK2 PondsX Flo Systems