@Lozo, ok, so you want an XL, something that's 109mm not 92mm. So you could either do an Omni XL or an XLS which consists of a 62mm stem midsection & a spinning mouthpiece on an XL condenser. If you want a piece that can be used with a 14mm joint on a bubbler without the need for an attachment, then you can consider a vong stem. I'm sure you already perused Dynavap's website. Just scrolling through this thread will bring up some great pics of different configurations which will help you hone in on what you like. Also do a search for vapcap & dynavap on youtube.