G'day all
Bought one of these for a pole carrier for the rear of the van together with the cap retention lanyard. ($79.95 + $13.95 + postage)
http://www.adilockablecap.com.au/ Wanted a 150mm pole carrier so also bought a length of PVC piping at 2100 and an end cap from the local plumbing store for $50.00. The security cap adds a bit of length. Glue and prep came with the locking cap but had some in the garage too. Got some brackets from CaravansPlus and for about $200 including postage made a secure pole carrier.
The carrier now contains 2 x anti-flap bars (complete), 2 x roof rafters and 2 x annex poles - snug fit. Overall the carrier remains within the extremeties of the bumper bar which is also within the width of the caravan
Hardest part/s - finding some PVC piping that wasn't scratched and presentable enough for the van - ended up using some cut and polish compound with the selected piece to bring up to standard. Difficult mounting on own and maintaining the equal distance from either side of the van whilst twisting the carrier in the brackets and trying not to scratch the pipe on the metal - and keep from rubbing on the back of the van. Careful with the glue, its blue and stains everything it touches - including the pvc pipe. Careful with the pipe too, it scratches easily if not careful.
Pole carrier is waterproof, dustproof and fills in some space between the bumper bar and van. A good Saturday morning project.
regards