QB Series · Qwik Tees and Qwik Ells Flexible Fitting

Fernco QB-150/125 Flexible PVC Bushing

Part # QB-150/125

Unmatched quality and performance. Engineered for lasting durability in plumbing, sewer, and drain applications, Fernco couplings offer a robust,...
Flexible fit. Adapts 1-1/4" or 1-1/2" Fernco flexible tees and elbows to accept 1" connections.
Flexible elastomeric PVC. Maintains system flexibility while resisting cracking, shrinking, and environmental wear.
Specs and codes. Complies with ASTM d 5926

QB Series Size: 1.5" x 1.25"

Connects Cast Iron, Plastic and Steel

Drawing (PDF) All documents

Dimensions

Dimensional drawing of QB-150/125 data sheet

Download drawing (PDF)

End 1 pipe OD range	1.36" to 1.36"
End 2 pipe OD range	1.60" to 1.60"
End 1 inside diameter	1.36"
End 2 inside diameter	1.60"
Length	1.86 in
Width	1.86 in
Height	0.85 in
Weight	0.03 lb

Product details

The Fernco QB-125/150 qwik reducing bushing is engineered to reduce a 1-1/4" or 1-1/2" opening down to 1" when used with Fernco flexible tees and elbows. Constructed from resilient elastomeric PVC, this reducing bushing maintains the flexibility and sealing performance of the parent fitting while enabling a smooth size transition without rigid inserts. Ideal for repair, retrofit, or service applications, the QB-125/150 simplifies piping changes where a smaller branch connection is needed within the Fernco flexible fitting system.

American craftmanship. With over 60 years of proud manufacturing in the USA, Fernco's products reflect unparalleled quality and reliability, underpinned by decades of industry expertise.

Specifications

Product
Connection	Compression
Fitting type	Bushing
Flexible	Yes
Material	Elastomeric PVC
Color	Black
Standards	ASTM D5926, UPC
Application	Above Ground, DWV

Performance
Max test pressure	4.3 psi
Temperature range	-30°F to 140°F

Drawings and downloads

Documents

Dimensional drawing

QB-150/125, PDF · 88.41 KB

Download

Directional Fitting Sell Sheet PDF · 961.47 KB
Qwik Tee and Ell Installation PDF · 2.61 MB
Installation instructions All products

Compare QB Series sizes

Cast Iron, Plastic and Steel

QB-150/125 (this part)

Size
1.5" x 1.25"

Pipe OD range
1.36" to 1.36" / 1.60" to 1.60"
QB-215

Size
2" x 1.5"

Pipe OD range
1.60" to 1.60" / 1.90" to 1.90"
QB-32

Size
3" x 2"

Pipe OD range
2.05" to 2.05" / 2.30" to 2.30"
QB-43

Size
4" x 3"

Pipe OD range
3.05" to 3.05" / 3.45" to 3.45"

Part	Size	Pipe OD range (end 1 / end 2)
QB-150/125 (this part)	1.5" x 1.25"	1.36" to 1.36" / 1.60" to 1.60"
QB-215	2" x 1.5"	1.60" to 1.60" / 1.90" to 1.90"
QB-32	3" x 2"	2.05" to 2.05" / 2.30" to 2.30"
QB-43	4" x 3"	3.05" to 3.05" / 3.45" to 3.45"