SP Bel-Art Roto-Flo Polystyrene Flow Indicator for ³/₁₆ to ¼ in. I.D. Tubing (H19937-0001)
Key features
- •Immediate visualization of flow; straight tube ends
- •Brightly colored polypropylene paddle wheel spins when gas or liquid flows through a system
- •Molded clear polystyrene body with smooth connecting barbs for easy installation
- •Internal flow channel diameter is 5mm, paddle wheel shell is 25mm, overall length is 51mm
- •Not for use with corrosive chemicals or fluids with a temperature in excess of 64 degree C (147 degree F)
SP Bel-Art Roto-Flo Polystyrene Flow Indicator for ³/₁₆ to ¼ in. I.D. Tubing (H19937-0001)
List Price: $43.41$39.07DEALYou Save: $4.34 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It October 25, 2026In Stock (6)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers3.3
out of 5
Based on 10 reviews
5★
70%
4★
0%
3★
10%
2★
0%
1★
20%
One Star
Amazon Customer✓ Verified Purchase•October 1, 2017
Barbs are not good and don't fit securely.
Not sensitive for air
JonH✓ Verified Purchase•July 4, 2017
Not very sensitive for air flow. I measured 2.5-3 LPM before the indicator will spin.
The brochure that is included with the device says a minimum of 2 LPM is required for use with air. They should specify that in the product description. The 0.5 LPM specification is for liquid, most likely water.
The brochure that is included with the device says a minimum of 2 LPM is required for use with air. They should specify that in the product description. The 0.5 LPM specification is for liquid, most likely water.
Nice product
Amazon Customer✓ Verified Purchase•March 25, 2017
It works fine.
Five Stars
Wizechatmgr✓ Verified Purchase•September 30, 2016
Works great. Makes it easier to judge fluid flow rates.
Five Stars
Amazon Customer✓ Verified Purchase•September 3, 2016
Easy to install and works great!
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