The Manfrotto 148KN bushing allows attachment of Bogen tripod heads with 3/8" screw holes to tripods with 1/4"-20 mounting bolts.
Manfrotto offers two levels of Warranty:
"Standard Limited Warranty" comes with all products.
This warranty does not cover any defects or costs caused by:
• misuse and subsequent damage.
• modification, alteration, repair or service of this product by anyone other than Manfrotto;
• any use of the product other than that for which it was designed;
"Limited Conventional Warranty Extension", offered by Manfrotto as a special extension to the "standard" Warranty and is free of charge up to 5 years after the original purchase. To take advantage of the “Limited Conventional Warranty Extension” scheme, you must register your product with Manfrotto within 12 months from the date of purchase.
Please go to http://www.manfrotto.com/warranty to register for the extended warranty.
Please ensure that you keep your receipt as proof of purchase for the warranty to be valid: you will need to send Manfrotto your receipt when you service or repair your product under warranty.