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 5050.702 SK Adaptor for roof mounted fan, , WxD 530x430mm, cutout WxD 258x258mm, for old cutout: WxD 490x390mm, for old roof mounted fan: 8801380 product. As soon as possible we will provide you with best price and delivery time offer.