Bogert’s 90-degree probe for the AVI-BJ107 drain valve can be used on many Continental aircraft engines. The probe has an O-ring seal around the valve body making it leak proof while also locking the probe to the valve body. Another improvement is the compactness of the probe. It is actually shorter than the original AVI-BJ107B probe making it easier to install and use. It is a high quality and low cost alternate to Piper part number 481-359, Beechcraft part number 107-B and Auto Valve Inc. AVI-BJ-107B. For more information visit www.bogertaviation.com or call (800) 627-8088.