Since the TM works with an inside down short RBT stem, how about getting an 18mm female to 18mm female so you insert this upside down end into the one female side & the rbt xl8r male into the other female top side.
This is the one I ordered today:
The Straight Adapter from Grav (formerly Grav Labs) is made with high quality borosilicate glass and is designed to convert your 18mm male glass on glass joint to a 18mm female connection.
smokea.com
While I don't have the TM (time will tell ...
), I just ordered this to see if I can couple it to the 18mm Enano WPA to attach to the xl8r. Since the enano wpa is rather funkily designed don't know if it will work, but not impressed by epic's cooling stem. If I recall from past reading months ago, I think this wpa measures 3", but it's all 5 stars everywhere due to the glass thickness. And for this company's 3 BBB complaint replies, I feel comfortable ordering from them. The only thing I don't like is the age verification bs. They're in MO. It couldn't verify my age by my incorrectly entered birthday nor my then correctly entered birthdate, then the last 4 digits of my social. It then said it was verifying me through my addy & it worked. My suggestion is to enter your incorrect birthdate & social & see if it verifies by addy 1st before resorting to correct personal info. Other option was sending a photo of driver's license. Fuck that! The Gov't doesn't need it for our most precious right - VOTING - but to buy vape products!
I get that businesses are covering their asses. OK, rant over.
Anyway, Tag's designated
super-thick adaptors are really nice but they're sold out. If either works out for me I'll order backups of these when back in stock just to compare.
And since it's free ship over $10 @ Smokea, consider ordering one of these below as most of us do have all the male to female gong sizes, but are missing the female to females.
The Straight Adapter from Grav (formerly Grav Labs) is made with high quality borosilicate glass and is designed to convert your 14mm male glass on glass joint to a 18mm female connection or any 18mm male glass on glass joint to a 14mm female connection.
smokea.com
The Straight Adapter from Grav (formerly Grav Labs) is made with high quality borosilicate glass and is designed to convert your 14mm male glass on glass joint to a 14mm female connection for use with a dry herb bowl.
smokea.com