Brass Elbow Union 1/8″ FPT 7AK003

The Brass Elbow Union 1/8″ FPT (part# 7AK003) is a genuine Tacony OEM replacement part from the brush assembly of the Tornado Marathon SE 900 self-contained carpet extractor. It is the brass 90 degree union with 1/8 inch female pipe threads on both ends.

What the Brass Elbow Union 1/8″ FPT does

Having female threads at both ends makes this the fitting that joins two male ends around a turn, which is a different job from a street elbow with one of each. Getting that distinction right at the parts stage saves a lot of improvisation at the bench, because the alternative is stacking nipples and adapters to make the ends meet and adding two more joints to a small line that cannot spare the flow.

When to replace the Brass Elbow Union 1/8″ FPT (7AK003)

Replace it when either thread is damaged, when it has been overtightened enough to distort or crack the body, or when the wrench flats are rounded off. A union that has had fittings in and out of it many times often has one end that simply will not seal again.

Brass Elbow Union 7AK003 — fitment and installation notes

Seal both threads and tighten one at a time, then re-check the first, since taking up the second can slacken the first. Orient the elbow before the final nip so both connections run where they should, and support the fitting rather than putting the wrench load through the component behind it. Tacony builds the Tornado Marathon SE 900 and the Powr-Flite Prowler PFX900S on a single machine platform, so this component carries across both brands rather than belonging to either one. It is a shared Tacony component and may fit additional models beyond those listed — call us and we will confirm against your serial number.

Compatible Models for the Brass Elbow Union 1/8″ FPT

• Tornado Marathon SE 900 — Model 98170
• Powr-Flite Prowler PFX900S
• Powr-Flite PFX900SG

Twin City Vacuum has been selling and servicing commercial floor-care equipment since 1956 from 5415 West Broadway, Crystal, MN 55428. We stock genuine Tacony parts and ship nationwide. Browse the full Tornado 98170 parts catalogue, or see the manufacturer at tornadovac.com.

Frequently Asked Questions

What does the Brass Elbow Union 1/8″ FPT do on the Tornado Marathon SE 900?

Having female threads at both ends makes this the fitting that joins two male ends around a turn, which is a different job from a street elbow with one of each. Getting that distinction right at the parts stage saves a lot of improvisation at the bench, because the alternative is stacking nipples and adapters to make the ends meet and adding two more joints to a small line that cannot spare the flow.

How do I know if my Brass Elbow Union 1/8″ FPT needs replacing?

Replace it when either thread is damaged, when it has been overtightened enough to distort or crack the body, or when the wrench flats are rounded off. A union that has had fittings in and out of it many times often has one end that simply will not seal again.

What models is the Brass Elbow Union 1/8″ FPT (part# 7AK003) compatible with?

The Tornado Marathon SE 900 (Model 98170), the Powr-Flite Prowler PFX900S and the PFX900SG. It is a shared Tacony part and may fit further models; call us to confirm.

How do I order the Brass Elbow Union 1/8″ FPT (part# 7AK003) or get help?

You can add the Brass Elbow Union 1/8″ FPT (part# 7AK003) directly to your cart on this page, or call us at 763-535-0770. Our staff at 5415 West Broadway, Crystal, MN 55428 has been servicing Tornado equipment since 1956 and can help confirm the right part for your machine.