SLR / Extension Rings / Ikelite DL 28mm Port Extension Ring CloseIkelite DL 28mm Port Extension Ring Zoom Extends a DL system dome or flat port by approximately 28mm (actual 1.025 inches). SKU: # ike-75028 FREE Standard Shipping to USA / Canada! Price $225.00 Options Back Item IncomeAccount TaxCode Mapping UDF1 UDF2 UPC Code Pick Up Tax Amount Quantity -+ Add to Cart Add to Cart Custom Options Price as Configured Add to Cart View Cart Articles & Videos About This Item ALL ARTICLES ALL VIDEOS Overview / Product DescriptionIkelite DL 28mm Port Extension RingExtends a DL system dome or flat port by approximately 28mm (actual 1.025 inches).What's IncludedPort extensionO-ringSecuring thumbscrewsSpecificationsAcetyl bodySpare PartsO-ring # 0139.41Silicone lubricant # 0184.2Thumbscrews (set of 3) # 9249.7