United Scientific Supplies

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US$15.76
These are rectangular blocks that are ideal for refraction and internal reflection studies as well as index of refraction measurements.
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US$9.97
The Rectangular clear acrylic Refraction Cell demonstrates refraction and internal reflection in water and to measure its refractive index. The cells have uniform wall thickness to eliminate distortion. 6cm x 3cm x 6.2cm high.
Delivery within 2-3 weeks
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US$7.10
The Semi-Circular clear acrylic Refraction Cell demonstrates refraction and internal reflection in water and to measure its refractive index. The cells have uniform wall thickness to eliminate distortion. 12 cm diameter x 2.5 cm high.
Delivery within 2-3 weeks
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US$33.17
The Rectangular Glass Block has two frosted sides. Dimensions: 114mm x 63mm x 19mm.
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US$24.47
These are flexible and strong rubber tubing available in 10" and 50".   Order# Description Bore/Thickness  RT4812-10  10'...
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US$32.03
These are flexible and strong rubber tubing available in 10" and 50".   Order# Description Bore/Thickness  RT4812-10  10'...
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US$100.72
These are flexible and strong rubber tubing available in 10" and 50".   Order# Description Bore/Thickness  RT4812-10  10'...
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US$5.45
These spring scales feature a clear plastic tube design, and are color-coded. A zero adjustment screw is provided at the top. Overall length is approximately 7". 250g / 2.5N. Graduation: 5g / 0.05N.
Delivery within 2-3 weeks
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US$5.45
These spring scales feature a clear plastic tube design, and are color-coded. A zero adjustment screw is provided at the top. Overall length is approximately 7". 500g / 5N. Graduation: 10g / 0.1N.
Delivery within 2-3 weeks
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US$5.45
These Spring Scales come in a clear plastic case, and include a metal pointer, spring, suspension ring, and load hook. Scales are calibrated in Grams, Newtons, or both, with zero adjustment.
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US$5.45
These Spring Scales come in a clear plastic case, and include a metal pointer, spring, suspension ring, and load hook. Scales are calibrated in Grams, Newtons, or both, with zero adjustment.
Delivery within 2-3 weeks
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US$5.45
These Spring Scales come in a clear plastic case, and include a metal pointer, spring, suspension ring, and load hook. Scales are calibrated in Grams, Newtons, or both, with zero adjustment.
Delivery within 2-3 weeks
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Add to wish list

US$5.45
These spring scales feature a clear plastic tube design, and are color-coded. A zero adjustment screw is provided at the top. Overall length is approximately 7". 250g / 2.5N. Graduation: 5g / 0.05N.
Delivery within 2-3 weeks
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US$11.87

These Slide Storage Boxes are sturdy two-piece molded plastic boxes. The bottom section has slide numbers engraved for easy reference, and the inside of the lid carries a numbered slide index.

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US$12.99
The Acrylic Semi Circular Lens have a 75mm base and are 15mm thick.
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US$2.61
Slotted Screwdrivers with durable plastic handle. 
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