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Barrow THDJ15-V1 G1/4 Male-to-Male Rotary Extender Fitting, 15mm with 1.5mm Micro Adjustment
Barrow THDJ15-V1 G1/4 Male-to-Male Rotary Extender Fitting, 15mm with 1.5mm Micro Adjustment
TL;DR: The THDJ15-V1 is a G1/4 male-to-male rotary extender that adds 15mm of fixed length plus up to 1.5mm of fine adjustment between two female G1/4 ports, so two parallel components can be aligned and joined directly without flexible tube. The body is brass with an electroplated finish; the center...
Common Applications
The THDJ15-V1 is a G1/4 male-to-male rotary extender that adds 15mm of fixed length plus up to 1.5mm of fine adjustment between two female G1/4 ports, so two parallel components can be aligned and joined directly without flexible tube. The body is brass with an electroplated finish; the center joint splits the fitting into two halves that rotate against each other on twin O-rings, allowing free angular adjustment under pressure. The micro-adjust travel is intended only for closing a small gap; do not exceed 1.5mm of extension, or the inner O-rings will move out of their groove and the seal will fail.
Frequently Asked Questions
Q: How long is the extender?
A: 15mm at rest, with up to 1.5mm of additional micro-adjustment travel, for a maximum of 16.5mm of total length between the two G1/4 mating faces.
Q: Why is there a 1.5mm extension limit?
A: Past 1.5mm the inner O-rings begin to ride out of the sealing groove and the joint will leak. Always close the gap with a longer fixed extender rather than over-extending this one.
Q: Is the joint rotary?
A: Yes. The two halves rotate freely against each other on dual O-rings, so the fitting can also be used to relieve twist between two fixed components.
Q: What is it made of?
A: Brass with an electroplated finish. Common colors include black, white, silver and gold.
Q: What thread does it use?
A: G1/4 BSPP at both ends (male-to-male). It mates into any standard G1/4 female port on a reservoir, pump top, water block, radiator or distribution plate.







