Designed for transitioning between 3½ inch and 3¾ inch connections, the Thermal Flex Reducer 3 1/2 x 3 3/4 is a concentric reducer from Tacna International's Thermal Flex product line. This type of reducer is used in industrial fluid and thermal management systems where a step-down in connection size is required between components or segments of a circuit.
Manufactured under the Thermal Flex brand, this reducer is suited for applications where dimensional compatibility between differing connection sizes must be maintained without compromising flow path integrity. With limited additional specification data available, buyers are encouraged to confirm fitment against the listed dimensions and alternate part numbers prior to ordering.
SKU: TFCS40-350/375
Supplier Part Number (MPN): TFCS40-350/375
Alternate Part Numbers: C1HH14, MI-08752806, MINO-01769X97569
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Specifications
Alternate Part Numbers
Alternate Part NumberC1HH14, Alternate Part Number MI-08752806, Alternate Part Number MINO-01769X97569
Brand
Tacna International Corp (Thermal Flex)
Brand
Thermal Flex
Pack Size
1.00
UOM
EA
Supplier Part Number
TFCS40-350/375
Product Weight
0.50 lbs
Product Questions & Answers (2)
Question by: Donna M on Apr 16, 2025, 6:39 PM
Got a line running 3½ inch that needs to tie into a 3¾ inch fitting, this reducer handle that transition?
Answer by: Customer Support on Apr 18, 2025, 1:25 PM
That's what it's built for. The TFCS40-350/375 bridges a 3½ inch connection on one end to a 3¾ inch on the other, concentric style, so your flow path stays centered and clean through the step-up. Just confirm your existing fittings match those two sizes before ordering and you'll be in good shape.
Question by: Dale H on Jul 17, 2025, 7:40 PM
What size connections does this thing handle?
Answer by: Customer Support on Jul 19, 2025, 11:50 AM
It's designed for connecting a 3 1/2 inch connection to a 3 3/4 inch connection.
