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51 - 75 of 106
Hagen-Laguna Threaded Hose Connector

Hagen-Laguna Threaded Hose Connector

1/2in Threaded Hose Connector for PowerJet Original Pump 250

From $0.81
Nu-Clear Model 530 & 533 Replacement Canister Filter Cartridge, 25 Micron, 30 sq. ft.

Nu-Clear Model 530 & 533 Replacement Canister Filter Cartridge, 25 Micron, 30 sq. ft.

Nu-Clear Canister Replacement Pleated Filter Cartridge 30 square foot, 25 micron.

$53.99
Aqua UV Advantage 2000 UV Lamp

Aqua UV Advantage 2000 UV Lamp

Replacement UV Lamp for Aqua UV Advantage 2000 8W Ultraviolet sterilizer.

From $37.80
Danner Pre-filter for Mag-Drive / Pondmaster Pumps Models 2, 3, 5 & 7

Danner Pre-filter for Mag-Drive / Pondmaster Pumps Models 2, 3, 5 & 7

Product Highlight(s): Small Foam Pre-filter for Pondmaster Pumps 2, 3, 5 & 7 Dimension: 2.25 inches x 4 inches Small Foam Pre-filter for Pondmaster Pumps 2, 3, 5 & 7. Dimension: 2.25"x 4"

From $9.99
Danner Foam Pre-filter for Mag-Drive / Pondmaster Pumps Models 9.5, 12 & 18

Danner Foam Pre-filter for Mag-Drive / Pondmaster Pumps Models 9.5, 12 & 18

Product Highlight(s): Foam Pre-filter for Pondmaster Pumps 9.5, 12 & 18 Dimensions: 3.25 inches x 4.5 inches x 5.5 inches Foam Pre-filter for Pondmaster Pumps 9.5, 12 & 18 Dimensions: 3.25" x 4.5" x 5.5"

$12.99
Lifegard Aquatics 40 W Replacement UV Bulb 175231

Lifegard Aquatics 40 W Replacement UV Bulb 175231

Lifegard Aquatics 40 W Replacement Bulb 175231 Pure hard quartz material in the bulb dramatically increases UV output compared to other conventional bulbs of equal wattage. Pure quartz material resists solarization and improves t...

$71.99
Tower Shock Buster Portable GFCI

Tower Shock Buster Portable GFCI

Shock Buster - Portable Ground Fault Circuit Interrupter (GFCI) An electrical outlet that can save your life. Senses electrical danger and shuts off the power before it can harm you. Why run the risk when working with electrici...

$15.49
American Marine Pinpoint pH Monitor Package

American Marine Pinpoint pH Monitor Package

American Marine PINPOINT pH Monitor The PINPOINT pH Monitor™ is in use by thousands of customers worldwide. This affordable unit remains the only full-time pH monitor with .01 resolution. The PINPOINT pH Monitor™ requires only a ...

$113.99
Nu-Clear Premium Activated Carbon 1.5 lbs for Nu-Clear 522/533

Nu-Clear Premium Activated Carbon 1.5 lbs for Nu-Clear 522/533

Nu-Clear Premium Activated Carbon 1.5 lbs for Nu-Clear 522/533

$14.99
Elbow Fitting - FPT x FPT

Elbow Fitting - FPT x FPT

Part #: 270422 Size: 1/2" FPT x 1/2" FPT **Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching under our Low Pric...

From $0.99
Tee Fitting - FPT x FPT x FPT

Tee Fitting - FPT x FPT x FPT

Part #: 270462 Size: 1/2" FPT x 1/2" FPT x 1/2" FPT **Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching under o...

From $1.99
Aqua UV Rubber Seal - UV Sterilizer

Aqua UV Rubber Seal - UV Sterilizer

Replacement Aqua UV Black Rubber Seal

$3.36
Aqua UV Mounting Bracket

Aqua UV Mounting Bracket

Aqua UV Mounting Bracket

$9.52
Hanna Instruments pH Calibration Solution, 20 ml Sachet (25pcs)

Hanna Instruments pH Calibration Solution, 20 ml Sachet (25pcs)

HANNA instruments` buffer solutions are prepared according to precise formulas and are standardized with a pH meter calibrated according to the NIST standards. The 20 mL sachets are single-dose whereas, for more demanding applica...

From $26.49
American Marine Pinpoint Wireless Thermometer (includes one sensor)

American Marine Pinpoint Wireless Thermometer (includes one sensor)

American Marines Wireless Thermometer Utilizing a radio wave signal, the remote sensor(s) will measure the temperature at the waterproof probe tip and send the information to the PINPOINT Temperature Display Monitor, which will d...

$34.49
Double Slip Bulkhead (Schedule 80, Heavy Duty) - 2 inch Slip x 2 inch Slip

Double Slip Bulkhead (Schedule 80, Heavy Duty) - 2 inch Slip x 2 inch Slip

Double Slip Bulkhead (Schedule 80, Heavy Duty) - 2" Slip X 2" Slip Hole Size Required: 3 1/4" **Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this i...

$21.99
American Marine Pinpoint pH Controller

American Marine Pinpoint pH Controller

American Marines PINPOINT pH Controller PINPOINT pH Controller™ is an inexpensive yet rugged controller, which includes the appropriate probe and calibration fluids. This device will automate another electrical device such as a c...

$199.99
American Marine Pinpoint ORP Probe

American Marine Pinpoint ORP Probe

American Marine PINPOINT ORP Replacement Probe 10 foot cord Ag-Ag/Cl reference Platinum wire sensor Extended life High supression cable jacket

$74.99
Tower Shock Buster 3-Outlet Electrical Cord with Inline GFCI

Tower Shock Buster 3-Outlet Electrical Cord with Inline GFCI

Shock Buster - 3-Outlet Electrical Cord with Inline Ground Fault Circuit Interrupter (GFCI) Senses electrical danger and shuts off the power before it can harm you. Why run the risk when working with electricity? What does Sh...

$30.99
Lifegard Aquatics Aquastep Pro 25 W Replacement UV Bulb 175230DP

Lifegard Aquatics Aquastep Pro 25 W Replacement UV Bulb 175230DP

Lifegard Aquatics 25 W Replacement Bulb 175230 Pure hard quartz material in the bulb dramatically increases UV output compared to other conventional bulbs of equal wattage. Pure quartz material resists solarization and improves t...

$66.99
Nu-Clear Canister Filters

Nu-Clear Canister Filters

Nu-Clear 500 Series Modular Canister Filters provide the ultimate in aquatic life support systems for consumer and commercial fresh and salt water aquariums, fountains, or ponds. With several mechanical, chemical and biological op...

From $187.49
Lifegard Aquatics replacement UV Ballast. R175267

Lifegard Aquatics replacement UV Ballast. R175267

 2011Lifegard Aquatics 40Watt ballast for QL-25, 40, 80, 120, 160, 240 Lifegard Aquatics UV Ballast requires a 3 inch cap with couplings. Please add RB6175 to your cart.

$56.99
Aquarium Pharmaceuticals® API Super Activated Carbon 80oz

Aquarium Pharmaceuticals® API Super Activated Carbon 80oz

Black Magic® Super Activated Carbon Research grade carbon. Keeps water clean and crystal clear. The patented activation process used in its production yields a high purity, premium grade carbon with optimal pore structure and a...

$28.99
Nu-Clear Premium Activated Carbon 7 lbs for Nu-Clear 566

Nu-Clear Premium Activated Carbon 7 lbs for Nu-Clear 566

Nu-Clear Premium Activated Carbon 7 lbs for Nu-Clear 566

$44.99
Hanna Instruments Waterproof pH Tester with Replaceable Electrode

Hanna Instruments Waterproof pH Tester with Replaceable Electrode

When HANNA instruments introduced its first version of the pHep (pH electronic paper) in 1986, it immediately revolutionized the standard in pH measurement. pHep`s ease-of-use in combination with its affordability made it possible...

From $88.99
51 - 75 of 106
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