You can fill out the following form or send us an email to [email protected] to get our quotation about the price and supply period of Rittal SK 5050.700 SK Adaptor for roof mounted fan, , WxD 385x305mm, cutout WxD 258x258mm, for old cutout: WxD 345x265mm, for old roof mounted fan: 3148007, 3149007, 3169007 product. As soon as possible we will provide you with best price and delivery time offer.