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FLEXTECH Silicone SAE J20R3 Heater Hose, 3-1/2 in ID, 12 ft, Red - Silicone SAE J20R3 Heater Hoses
FLEXTECHSilicone SAE J20R3 Heater Hoses

FLEXTECH Silicone SAE J20R3 Heater Hose, 3-1/2 in ID, 12 ft, Red

The FLEXTECH Straight Hose (SKU HT40-350, MPN HT40-350) is a silicone SAE J20R3 heater hose with a 3 1/2 in inside diameter and 12 ft length. It features a red silicone cover and silicone tube, with a temperature…

SKU 3G-OTH-454157

Also listed as: HT40350 · HT40 350

Brand
FLEXTECH
Item
Silicone SAE J20R3 Heater Hose, 3-1/2 in ID, 12 ft, Red
Part Number
HT40-350
Category
Silicone SAE J20R3 Heater Hoses
Available to Order
Also known as:HT40-350FLEXTECH
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Technical Specifications

FLEXTECH
Manufacturer Part Number
HT40-350
Type
Red, Silicone, Silicone
Hose Lg
12 ft
Hose Color
Red
Temp. Range
-65° to 450°F
Hose Tube Material
Silicone
Hose Cover Material
Silicone

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FLEXTECH Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The FLEXTECH Straight Hose (SKU HT40-350, MPN HT40-350) is a silicone SAE J20R3 heater hose with a 3 1/2 in inside diameter and 12 ft length. It features a red silicone cover and silicone tube, with a temperature range of -65° to 450°F.

Frequently Asked Questions

What is a FLEXTECH Straight Hose used for?

This FLEXTECH silicone SAE J20R3 heater hose is used for coolant and hot-water transfer in industrial heating systems, engine cooling, and process lines. Its -65° to 450°F range suits high-temperature applications across machining, HVAC, and combustion equipment.

What are the specifications of the FLEXTECH Straight Hose HT40-350?

The FLEXTECH Straight Hose (MPN HT40-350) has a 3 1/2 in inside diameter, 12 ft length, red silicone cover and tube, and a temperature range of -65° to 450°F. It meets SAE J20R3 standards for heater hose performance.

Where to buy FLEXTECH Straight Hose in worldwide?

3G Electric supplies the FLEXTECH Straight Hose HT40-350 to worldwide customers. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this silicone SAE J20R3 heater hose.

How to select the right FLEXTECH heater hose for my application?

Select based on inside diameter (3 1/2 in for this model), temperature range (-65° to 450°F), and fluid compatibility. For coolant or hot water, silicone SAE J20R3 hoses like this FLEXTECH are suitable. Confirm length (12 ft) meets your routing needs.

Used in

Common applications for FLEXTECH
Industrial heating systems — FLEXTECH silicone hump hose couplers connect heater hoses in coolant lines, absorbing thermal expansion.
HVAC units — FLEXTECH hump hose couplers with 2 in to 5 in inside diameters link components in low-pressure air circuits.
Engine compartments — FLEXTECH SAE J20 couplers handle vibration and misalignment in coolant and air-intake hoses.
Coolant circulation loops — FLEXTECH silicone couplers maintain flow and reduce stress in heater hose assemblies.
Low-pressure pneumatic systems — FLEXTECH hump hose couplers provide flexible connections in air lines up to 350°F.
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FLEXTECH Products

3G Electric supplies FLEXTECH silicone sae j20r3 heater hoses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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This silicone heater hose meets SAE J20R3 standards for use in coolant and hot water lines. It has a 1-inch inside diameter, 25-foot length, and a temperature range of -65° to 350°F. The blue silicone cover and tube provide resistance to heat and aging in industrial heating applications
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This silicone heater hose meets SAE J20R3 standards for use in coolant and hot water lines. It has a 1-inch inside diameter, 25-foot length, and a temperature range of -65° to 350°F. The blue silicone cover and tube provide resistance to heat and aging in industrial heating applications
This silicone heater hose meets SAE J20R3 standards for coolant and hot-water transfer in industrial heating systems. With a 4-inch inside diameter and 12-foot length, it handles temperatures from -65° to 450°F. The red silicone cover and tube resist degradation in high-heat environments such as boilers, heat exchangers, and process machinery
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This silicone heater hose meets SAE J20R3 standards for coolant and hot-water transfer in industrial heating systems. With a 4-inch inside diameter and 12-foot length, it handles temperatures from -65° to 450°F. The red silicone cover and tube resist degradation in high-heat environments such as boilers, heat exchangers, and process machinery

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