2 Lengths - 3/8" OD x 1/4" ID x 22 Inch Long Thin Wall Clear Acrylic Plexiglass Tubes - .375" Diameter - Approx. 9.5mm

2 Lengths - 1/2" OD x 3/8" ID x 12 Inch Long Thin Wall Clear Acrylic Plexiglass Tubes - .50" Diameter - 12.7mm

IPS Weld-On 3 Acrylic Plastic Cement with Weld-On Applicator Bottle with Needle, 4 oz Can, Clear

Lee's Pet Products ALE16005 Rigid Tubing for Aquarium Pumps, 3/16-Inch by 3-Feet

1 Length 1/2" OD x 3/8" ID x 18" INCH Long Thin Wall Clear Acrylic PLEXIGLASS Tube - .50" Diameter - 12.7mm

Red Sea Fish Pharm ARE21420 Saltwater Nitrate Pro Test Kit for Aquarium, 100 Tests

PULACO 50GPH 3W Mini Submersible Water Pump for Aquariums, Fish Tank,Wave Maker Pump, Pond, Fountain, Hydroponics

Clear Polycarbonate Tubing, 3/8" ID, 1/2" OD, 1/16" Wall, 6' Length

Thermaltake Pacific DIY Silicon Insert for ID 12mm (1/2") PETG Hard Tube CL-W200-OS00GM-A

Multipurpose U Return Pipe U Directional Pipe tube 5/8''~3/4'' Duck Bill Hose

Glass Co2 Drop Checker with 4dkh/PH Solution | Quickest, Most Accurate & Easiest to Use | NilocG Aquatics | Glass Co2 Drop Checker with 4dKH/Ph Reagent Most Accurate Monitoring of Your Co2 Levels