Travertine shower sealer (tiles, vent, better, estimate)

[Roman45]

I have a travertine shower that needs to be cleaned and sealed. I have an estimate from a guy who is going to do the job. He says he is going to use a impregnator solvent sealer.

He says the sealer is good for sealing both the tiles and the grout. Is this right? I always thought they had their own specific sealers. Anyone want to drop their two cents on this? Thanks.

[K'ledgeBldr]

That's what I'd pick.

[Roman45]

So do you think the solvent is better than the water sealers? Especially if it's a shower? I read that they last longer.