# BT-60 coupler

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#### Major Tom

##### Well-Known Member
I am looking to replace a coupler to connect BT 60 tubes so I can finish my PSII Mammoth. Lost mine...afraid it got trashed. Plenty of people online sell them, but I can't bring myself to spend 10 bucks (shipping is high for a simple order) on one coupler. Anyone have one lying around I can buy?

#### dmgrime

##### Well-Known Member
Where are you located?

Pocatello, Idaho

#### blackjack2564

##### Crazy Jim's Gone Banana's
TRF Supporter
UMMM are you sure about size? Bt -60 is around 1.5 in diam. and a Mammoth is 2in.

#### dcullen

Yep, the PS II kits tend to be built out of non-standard (for Estes) tubing sizes. Mammoth is 2" and the coupler is available for 1.99. Sure you need another $37.99 worth of rockets to avoid the shippinghttps://www.rocketryforum.com/images/smilies/3.gif #### dhbarr ##### Amateur Professional I've used mailing tube as an outer coupler for this, 2in ID. #### jlabrasca ##### Well-Known Member If you've got any tube stock larger than 2 inches it is pretty easy to fabricate a coupler. https://www.jcrocket.com/make-a-coupler.shtml Yep, the PS II kits tend to be built out of non-standard (for Estes) tubing sizes. Mammoth is 2" and the coupler is available for 1.99. Sure you need another$37.99 worth of rockets to avoid the shippinghttps://www.rocketryforum.com/images/smilies/3.gif
The PSII Bundle is back in stock.