Gravel Lane, Quarry Lane Industrial Estate, Chichester, West Sussex, PO19 8PQ. Tel: 01243 787817 Fax: 01243 530440. Email: sales@oringslimited.co.uk. Website: www.oringslimited.co.uk. PARTNER/DISTRIBUTER for TRELLEBORG SEALING SOLUTIONS. Part of the Oldham Seals Group of companies. How to Measure an O-ring. O-rings are round mechanical seals that keep gas or liquid from passing through an opening. Over time, these seals may wear out and require replacement.
1 CostHelper readers report paying $115-$260 to have their air conditioning checked and either topped off or recharged, at an average cost of $162.  If leaks are detected, it typically costs $150-$800 for minor repairs to a vehicle's air conditioning system and then recharging it. This generally includes replacing a few parts like hoses, sensors, or either the compressor or condenser.
1 Class A motorhomes are the largest and most expensive category of motorized RV. 2  Premium costs depend on the motorhome's age, size and value, and frequency of use. 3  RVersOnline.org estimates average insurance costs of $1,000-$1,300 a year for a gas-powered Class A motorhome used 140 days each year. An Idaho buyer looking at a supersized Class C motorhome valued at $120,000 was quoted $3,097 a year; some owners report similar rates, but others are paying $800-$1,000 a year.