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# 20 FORS X #16 MORS

Description & Features

The # 20 FORS X #16 MORS fitting from World Wide Fittings features a straight configuration within the FS2406 series.

It includes a 1-11/16-12 Brennan A1 thread and a 1-7/16-12 Brennan A2 thread, with corresponding tube ODs of 1-1/4 inch and 1 inch, respectively. The A2 drill size is 0.811 inches, and the C hex measures 1.875 inches. The L length is 1.514 inches.

SKU: FS2406-20-16

Supplier Part Number (MPN): FS2406-20-16

Alternate Part Numbers: AFF2281T1620S, FF2406-20-16

Specifications

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Alternate Part Numbers Alternate Part Number AFF2281T1620S, Alternate Part Number FF2406-20-16	Supplier Part Number FS2406-20-16	Product Weight 0.99 lbs

Product Questions & Answers (2)

Question by: Daryl A on Feb 22, 2026, 8:09 PM

what size tubes does this fitting connect exactly, the 1-1/4 and the 1 inch side?

Answer by: Customer Support on Feb 24, 2026, 10:16 AM

Correct on both counts. The larger end handles 1-1/4 inch OD tube with a 1-11/16-12 thread, and the smaller end steps down to 1 inch OD tube on a 1-7/16-12 thread. So yeah, if you're running two different line sizes and need to tie them together straight, that's exactly what this fitting does.

Question by: Roger P on Oct 14, 2025, 6:04 PM

trying to swap out a fitting, is FS2406-20-16 the straight one that goes from a #20 FORS to a #16 MORS?

Answer by: Customer Support on Oct 16, 2025, 6:03 PM

Yes. FS2406-20-16 is a straight FS2406 series fitting with a #20 FORS end using a 1-11/16-12 Brennan A1 thread, and a #16 MORS end using a 1-7/16-12 Brennan A2 thread.