LEE Filters Pro Hood for Cokin "P" Series Filter Holder PH84 B&H
67mm Metal Wide Angle Adapter Ring +100mm Filter Holder FOR Lee Hitech Cokin Z PRO 4X4"/5.6/5 filter|100mm filter holder|filter holder100mm filter - AliExpress
Amazon.com : Filter Holder for 100mm (4") Lee, Hitech, Cokin Z, Singh-ray Square Filters : Camera Lens Filters : Electronics
Filter holders
Zomei Square Filter Holder+77mm Adapter Ring for LEE Cokin Z HITECH system 4" 701470433298 | eBay
Photographic Filters. NiSi, Cokin & LEE review & comparison