AquaClear 50 Power Filter features a unique multi-stage filtration system that provides complete mechanical, chemical and biological filtration on water quality, Zeo-Carb and Ammonia Remover, Maximum Output: 757 L/
AquaClear 30 Zeo-Carb Filter Insert effectively eliminates odors, discoloration and impurities in freshwater aquariums, potent chemical duo prevents the buildup of toxic ammonia and nitrite, designed for Power Fil
Pulley Plastic Ball Bearing Tandem, Double, Two Low Friction, Ball Bearing Plastic Pulleys With Diameters Of 38 And 50 mm, One (1) High Quality, Double Plastic Pulley In Tandem, On An Open Sided Steel Frame, With Hooks At Each End Carrying Two Low Friction
Pulley Large With Universal Clamp, Consists Of A 70mm Diameter Light Alloy Pulley, Held In Alloy Bracket, With Two Clamping Screws For Bench And Rod Support. The Bracket May Be Clamped To A Bench Edge Or Similar Support Up To 1.5in Thick, Screwed To A Flat Surface
PineCAR Racer Basic Car Kit (scouting car), includes wood block, wheels, hubcaps, two lead-free one-piece axles and four lead-free nail-type axles. Wheels and axles should be the same on all cars in a race. Block dimensions - 1 3/4in w x 7in l (4.44 cm x 17.7 cm)
AquaClear 20 Activated Carbon Filter Insert improves water clarity in fresh and saltwater aquariums, for the AquaClear 20 Power Filter, it provides superior adsorption which eliminate odors, discoloration and impu
AquaClear 50 BioMax Filter Insert provides an optimal environment for the colonization and growth of beneficial bacteria, which is essential for effective biological filtration and water purification for the AquaC
AquaClear 70 Foam Filter Insert is mechanical filter media that effectively removes particles and debris from aquarium water. Prevents particulate waste from prematurely clogging other media in the filter, Designe
AquaClear 30 Activated Carbon Filter Insert improves water clarity in fresh and saltwater aquariums, for the AquaClear 30 Power Filter, it provides superior adsorption which eliminate odors, discoloration and impu
AquaClear 70 Power Filter features a unique multi-stage filtration system that provides complete mechanical, chemical and biological filtration on water quality, Zeo-Carb and Ammonia Remover, Maximum Output: 1135 L/
Rotating Platform, for gyroscope and moment of inertia demonstrations, Includes substantial support plates, heavy duty ballbearing axle, and six slip patches for safe use, Platform is 37.5cm in diameter
Pulley Bench Clamp Fitting, With Nylon Ball Bearing Pulley, Comprising A 50 mm Diameter, Carried On A Two Part Aluminium Frame, Designed Primarily For Clamping To The Edge Of A Bench, Table Etc. With The Pulley Overhanging The Edge And In A Vertical Plane, 110mm
Collision In Two Dimensions, Consists Of A Curved Track With A Base At One End. On The Base Is A Support To Hold A Ball At The Proper Height For A Center To Center Collision, Consists Of 25Cm One Piece Track, 3 Balls 12mm Diameter, 2 Steel, 1 Glass And 1 Plumb Bob.
Guinea And Feather Apparatus, Glass Tube Is 50Cm (20in) Long And 16mm Diameter With Two Rubber Bungs, One Carrying Brass, And 40Cm Long Pressure Rubber Tubing To Connect To Vacuum Pump, Includes: (1) Glass Tube, (1) Piece Of Rubber Tubing