If you want to buy an M Vapcap and want to use it with water tools you can either use the fat no over the M mp or you can replace your one piece 62mm stainless steel M stem/mp combination for a 45mm VonG body and a 17mm wood mp or the longer 62mm VonG stem. The VonGs fit a 14mm female joint on masterpieces. Those are your options. The M uses a standard length condenser and accommodates a 62mm midsection. It does not use the XL condenser. But you could buy an XL condenser to replace the standard condenser and then you could use a 62mm VonG stem and a 17mm wood mp.