mundorf silver oil in bpt conditioner

i am going t be installing in my bpt cpc in the network on each duplex these are rated 1000v ,these should be able to handle the ac.any opinions
Mundorf's 800V Silver/oil cap is good for 425 VAC (see pictures at, so the 1000V caps should be pretty safe.
In fact I break in Mundorf SIO caps by connecting them to a fused outlet for 2-4 weeks.
No worries, mate.
What values will you be using ?