You can use the UB9 Universal Ceiling/Wall Bracket to attach your PLS line laser to any ceiling t-grid for suspended ceiling/acoustic ceiling installation. The UB9 has a ceiling grid clamp, but you can also use a screw (keyhole hanging attachment) or a zip-tie to secure it. The UB9s vertical fine adjust knob lets you change the horizontal laser line of your PLS line laser quickly and easily. The UB9 works with the PLS 6R, PLS 6G, PLS 180R, and PLS 180G models, as long as you have the PLS MLB, PLS-20295, or PLS-21025 magnetic wall bracket (not included).